{
    "contractName": "Vault",
    "abi": [
        {
            "constant": true,
            "inputs": [
                {
                    "name": "",
                    "type": "address"
                },
                {
                    "name": "",
                    "type": "address"
                },
                {
                    "name": "",
                    "type": "uint256"
                }
            ],
            "name": "userSnapshots",
            "outputs": [
                {
                    "name": "timestamp",
                    "type": "uint256"
                },
                {
                    "name": "balance",
                    "type": "uint256"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [],
            "name": "renounceOwnership",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [],
            "name": "owner",
            "outputs": [
                {
                    "name": "",
                    "type": "address"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [],
            "name": "isOwner",
            "outputs": [
                {
                    "name": "",
                    "type": "bool"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "sender",
                    "type": "address"
                }
            ],
            "name": "initialize",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "newOwner",
                    "type": "address"
                }
            ],
            "name": "transferOwnership",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "inputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "constructor"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": false,
                    "name": "creator",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "participant",
                    "type": "bytes32"
                }
            ],
            "name": "NewParticipant",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": false,
                    "name": "creator",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "participant",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "txid",
                    "type": "uint256"
                }
            ],
            "name": "NewTransaction",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": false,
                    "name": "creator",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "participant",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "txid",
                    "type": "uint256"
                }
            ],
            "name": "SignTransaction",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": false,
                    "name": "creator",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "participant",
                    "type": "bytes32"
                },
                {
                    "indexed": false,
                    "name": "confirmation",
                    "type": "bool"
                }
            ],
            "name": "SignResponse",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": true,
                    "name": "platform",
                    "type": "address"
                },
                {
                    "indexed": false,
                    "name": "collection",
                    "type": "uint256"
                },
                {
                    "indexed": false,
                    "name": "timestamp",
                    "type": "uint256"
                }
            ],
            "name": "feecollection",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": false,
                    "name": "total",
                    "type": "uint256"
                },
                {
                    "indexed": false,
                    "name": "count",
                    "type": "uint256"
                }
            ],
            "name": "totalCount",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": false,
                    "name": "fees",
                    "type": "uint256"
                },
                {
                    "indexed": false,
                    "name": "totalCount",
                    "type": "uint256"
                },
                {
                    "indexed": false,
                    "name": "custodyfee",
                    "type": "uint256"
                }
            ],
            "name": "avgBalance",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": true,
                    "name": "previousOwner",
                    "type": "address"
                },
                {
                    "indexed": true,
                    "name": "newOwner",
                    "type": "address"
                }
            ],
            "name": "OwnershipTransferred",
            "type": "event"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_nominee",
                    "type": "address"
                }
            ],
            "name": "setDistributor",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_fee",
                    "type": "uint256"
                }
            ],
            "name": "setCustodyFee",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                }
            ],
            "name": "createVault",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_new",
                    "type": "string"
                }
            ],
            "name": "resetPin",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [],
            "name": "getVaults",
            "outputs": [
                {
                    "name": "",
                    "type": "bytes32[]"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_transferee",
                    "type": "address"
                }
            ],
            "name": "transferVault",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_pin",
                    "type": "string"
                }
            ],
            "name": "getCreator",
            "outputs": [
                {
                    "name": "",
                    "type": "string"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_participant",
                    "type": "bytes32"
                },
                {
                    "name": "_shard",
                    "type": "string"
                }
            ],
            "name": "addParticipant",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_participant",
                    "type": "bytes32"
                }
            ],
            "name": "removeParticipant",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_participant",
                    "type": "bytes32"
                },
                {
                    "name": "_pin",
                    "type": "string"
                },
                {
                    "name": "_confirmation",
                    "type": "bool"
                }
            ],
            "name": "confirmParticipant",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_minParticipants",
                    "type": "uint256"
                }
            ],
            "name": "defineQuorum",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                }
            ],
            "name": "getQuorum",
            "outputs": [
                {
                    "name": "",
                    "type": "uint256"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                }
            ],
            "name": "promptSignatures",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_participant",
                    "type": "bytes32"
                },
                {
                    "name": "_tx",
                    "type": "uint256"
                },
                {
                    "name": "_pin",
                    "type": "string"
                }
            ],
            "name": "signTransaction",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_participant",
                    "type": "bytes32"
                },
                {
                    "name": "_txid",
                    "type": "uint256"
                }
            ],
            "name": "checkQuorum",
            "outputs": [
                {
                    "name": "",
                    "type": "bool"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": true,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "_txid",
                    "type": "uint256"
                }
            ],
            "name": "getShards",
            "outputs": [
                {
                    "name": "",
                    "type": "string[]"
                }
            ],
            "payable": false,
            "stateMutability": "view",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "token",
                    "type": "address"
                }
            ],
            "name": "snapshotBalance",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_creator",
                    "type": "bytes32"
                },
                {
                    "name": "_id",
                    "type": "string"
                },
                {
                    "name": "token",
                    "type": "address"
                },
                {
                    "name": "fromTime",
                    "type": "uint256"
                },
                {
                    "name": "toTime",
                    "type": "uint256"
                }
            ],
            "name": "calculateAverageBalance",
            "outputs": [],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "constant": false,
            "inputs": [
                {
                    "name": "_token",
                    "type": "address"
                }
            ],
            "name": "collectCustodyFee",
            "outputs": [
                {
                    "name": "",
                    "type": "uint256"
                }
            ],
            "payable": false,
            "stateMutability": "nonpayable",
            "type": "function"
        }
    ],
    "metadata": "{\"compiler\":{\"version\":\"0.5.7+commit.6da8b019\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_participant\",\"type\":\"bytes32\"},{\"name\":\"_tx\",\"type\":\"uint256\"},{\"name\":\"_pin\",\"type\":\"string\"}],\"name\":\"signTransaction\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_fee\",\"type\":\"uint256\"}],\"name\":\"setCustodyFee\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_participant\",\"type\":\"bytes32\"}],\"name\":\"removeParticipant\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_token\",\"type\":\"address\"}],\"name\":\"collectCustodyFee\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"},{\"name\":\"\",\"type\":\"address\"},{\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"userSnapshots\",\"outputs\":[{\"name\":\"timestamp\",\"type\":\"uint256\"},{\"name\":\"balance\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getVaults\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes32[]\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"}],\"name\":\"getQuorum\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_nominee\",\"type\":\"address\"}],\"name\":\"setDistributor\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_pin\",\"type\":\"string\"}],\"name\":\"getCreator\",\"outputs\":[{\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_participant\",\"type\":\"bytes32\"},{\"name\":\"_txid\",\"type\":\"uint256\"}],\"name\":\"checkQuorum\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_participant\",\"type\":\"bytes32\"},{\"name\":\"_pin\",\"type\":\"string\"},{\"name\":\"_confirmation\",\"type\":\"bool\"}],\"name\":\"confirmParticipant\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_participant\",\"type\":\"bytes32\"},{\"name\":\"_shard\",\"type\":\"string\"}],\"name\":\"addParticipant\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"}],\"name\":\"createVault\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"isOwner\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_txid\",\"type\":\"uint256\"}],\"name\":\"getShards\",\"outputs\":[{\"name\":\"\",\"type\":\"string[]\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"token\",\"type\":\"address\"}],\"name\":\"snapshotBalance\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"token\",\"type\":\"address\"},{\"name\":\"fromTime\",\"type\":\"uint256\"},{\"name\":\"toTime\",\"type\":\"uint256\"}],\"name\":\"calculateAverageBalance\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"sender\",\"type\":\"address\"}],\"name\":\"initialize\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"}],\"name\":\"promptSignatures\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_transferee\",\"type\":\"address\"}],\"name\":\"transferVault\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_minParticipants\",\"type\":\"uint256\"}],\"name\":\"defineQuorum\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_creator\",\"type\":\"bytes32\"},{\"name\":\"_id\",\"type\":\"string\"},{\"name\":\"_new\",\"type\":\"string\"}],\"name\":\"resetPin\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"creator\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"participant\",\"type\":\"bytes32\"}],\"name\":\"NewParticipant\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"creator\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"participant\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"txid\",\"type\":\"uint256\"}],\"name\":\"NewTransaction\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"creator\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"participant\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"txid\",\"type\":\"uint256\"}],\"name\":\"SignTransaction\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"creator\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"participant\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"confirmation\",\"type\":\"bool\"}],\"name\":\"SignResponse\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"platform\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"collection\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"timestamp\",\"type\":\"uint256\"}],\"name\":\"feecollection\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"total\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"count\",\"type\":\"uint256\"}],\"name\":\"totalCount\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"fees\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"totalCount\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"custodyfee\",\"type\":\"uint256\"}],\"name\":\"avgBalance\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"}],\"devdoc\":{\"methods\":{\"addParticipant(bytes32,string,bytes32,string)\":{\"params\":{\"_creator\":\"vault creator's username, eg creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_participant\":\"vault participant's username, eg participant@email.com\\r\",\"_shard\":\"the private key shard of the participant\\r\"}},\"calculateAverageBalance(bytes32,string,address,uint256,uint256)\":{\"params\":{\"_creator\":\"vault creator's username, eg creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"fromTime\":\"time to start calculating token balance from\\r\",\"toTime\":\"time to end calculating token balance \\r\",\"token\":\"token address\\r\"}},\"checkQuorum(bytes32,string,bytes32,uint256)\":{\"params\":{\"_creator\":\"vault creator's username, eg creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_participant\":\"vault participant's username, eg participant@email.com\\r\",\"_txid\":\"transaction identifier\\r\"}},\"collectCustodyFee(address)\":{\"params\":{\"_token\":\"vault creator's username, eg creator@email.com\\r\"}},\"confirmParticipant(bytes32,string,bytes32,string,bool)\":{\"params\":{\"_confirmation\":\"true or false\\r\",\"_creator\":\"the vault's creator (eg, creator@email.com)\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_participant\":\"the vault's participant (eg, participant@email.com)\\r\",\"_pin\":\"the PIN number of the participant\\r\"}},\"createVault(bytes32,string)\":{\"params\":{\"_creator\":\"vault creator's username, eg, creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\"}},\"defineQuorum(bytes32,string,uint256)\":{\"params\":{\"_creator\":\"the vault's creator (eg, creator@email.com)\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_minParticipants\":\"the minimum number of co-signers\\r\"}},\"getCreator(bytes32,string)\":{\"params\":{\"_creator\":\"the vault creator (eg, creator@email.com)\\r\"},\"return\":\"the vault creator's unique ID\\r\"},\"getQuorum(bytes32,string)\":{\"params\":{\"_creator\":\"the vault's creator (eg, creator@email.com)\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\"}},\"getShards(bytes32,string,uint256)\":{\"params\":{\"_creator\":\"vault creator's username, eg creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_txid\":\"transaction identifier \\r\"}},\"initialize(address)\":{\"details\":\"Initializes the contract setting the deployer as the initial owner.\"},\"isOwner()\":{\"details\":\"Returns true if the caller is the current owner.\"},\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"promptSignatures(bytes32,string)\":{\"params\":{\"_creator\":\"the vault's creator (eg, creator@email.com)\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\"}},\"removeParticipant(bytes32,string,bytes32)\":{\"params\":{\"_creator\":\"vault creator's username, eg creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_participant\":\"vault participant's username, eg participant@email.com\\r\"}},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner.     * > Note: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.\"},\"resetPin(bytes32,string,string)\":{\"params\":{\"_creator\":\"the vault's creator (eg, creator@email.com)\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_new\":\"vault creator's new unique id\\r\"}},\"signTransaction(bytes32,string,bytes32,uint256,string)\":{\"params\":{\"_creator\":\"the vault's creator (eg, creator@email.com)\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_participant\":\"the vault's participant (eg, participant@email.com)\\r\",\"_pin\":\"the PIN number of the signer (participant)\\r\",\"_tx\":\"transaction identifier\\r\"}},\"snapshotBalance(bytes32,string,address)\":{\"params\":{\"_creator\":\"vault creator's username, eg creator@email.com\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"token\":\"token address\\r\"}},\"transferOwnership(address)\":{\"details\":\"Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.\"},\"transferVault(bytes32,string,address)\":{\"params\":{\"_creator\":\"vault to transfer\\r\",\"_id\":\"vault creator's unique id using which it can be reached, eg, its Google/APNS token\\r\",\"_transferee\":\"address of the new vault operator\\r\"}}}},\"userdoc\":{\"methods\":{\"addParticipant(bytes32,string,bytes32,string)\":{\"notice\":\"This function adds a participant to a vault that belongs to its creator\\r\"},\"calculateAverageBalance(bytes32,string,address,uint256,uint256)\":{\"notice\":\"This function calculates the average balance for a user and a token\\r\"},\"checkQuorum(bytes32,string,bytes32,uint256)\":{\"notice\":\"This function lets the creator check if quorum has been achieved for a particular transaction\\r\"},\"collectCustodyFee(address)\":{\"notice\":\"This function gets the shard for a participant\\r\"},\"confirmParticipant(bytes32,string,bytes32,string,bool)\":{\"notice\":\"This function confirms a participant in the vault when the participant sends its private key shard and PIN\\r\"},\"createVault(bytes32,string)\":{\"notice\":\"This function creates a vault for the creator\\r\"},\"defineQuorum(bytes32,string,uint256)\":{\"notice\":\"This function defines the number of participants required to co-sign a transaction\\r\"},\"getCreator(bytes32,string)\":{\"notice\":\"This function returns the vault creator's unique ID (eg, Google/APNS messaging token)\\r\"},\"getQuorum(bytes32,string)\":{\"notice\":\"This function retrieves the number of participants required to co-sign a transaction\\r\"},\"getShards(bytes32,string,uint256)\":{\"notice\":\"This function gets the shard for a participant\\r\"},\"getVaults()\":{\"notice\":\"This function returns list of vault creators\\r\"},\"promptSignatures(bytes32,string)\":{\"notice\":\"This function prompts participants to co-sign a transaction on the vault (ie, the creator's address secured by the quorum of participants)\\r\"},\"removeParticipant(bytes32,string,bytes32)\":{\"notice\":\"This function removes a participant in a vault that belongs to its creator\\r\"},\"resetPin(bytes32,string,string)\":{\"notice\":\"This function resets the vault owner's unique id\\r\"},\"signTransaction(bytes32,string,bytes32,uint256,string)\":{\"notice\":\"This function lets a participant co-sign a transaction\\r\"},\"snapshotBalance(bytes32,string,address)\":{\"notice\":\"This function takes a snapshot of the token balance for the user\\r\"},\"transferVault(bytes32,string,address)\":{\"notice\":\"This function transfers a vault from the transferor (msg.sender) to transferee\\r\"}}}},\"settings\":{\"compilationTarget\":{\"project:/contracts/Vault.sol\":\"Vault\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts-ethereum-package/contracts/GSN/Context.sol\":{\"keccak256\":\"0x3491510fa4862af1a43f6c860d9cf7392240196540cd3c0eea79d374d419c5a1\",\"urls\":[\"bzzr://5cddbf3b74b775a8670757a6b8e108dac17dac20253f35f4c729e9cb6bea4ed3\"]},\"@openzeppelin/contracts-ethereum-package/contracts/ownership/Ownable.sol\":{\"keccak256\":\"0xd7e8ab76fa35c4d8d35a06a6ed538cadab8b75a1aa00594ced1568b2c0cadde3\",\"urls\":[\"bzzr://b4c855b32d75f2a4969bfbd530b6934b69f12f28584b3746967e1ca64e024bd9\"]},\"@openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20Detailed.sol\":{\"keccak256\":\"0x704e0cb521f0b571096a72266a34d9a2a59a89853b5b271bc97fa307a4cc4dcc\",\"urls\":[\"bzzr://e52d3aae99e2faee616840b10037346e8fe91e72a457784050605cf9e130abb9\"]},\"@openzeppelin/contracts-ethereum-package/contracts/token/ERC20/IERC20.sol\":{\"keccak256\":\"0xe5bb0f57cff3e299f360052ba50f1ea0fff046df2be070b6943e0e3c3fdad8a9\",\"urls\":[\"bzzr://cf2d583b8dce38d0617fdcd65f2fd9f126fe17b7f683b5a515ea9d2762d8b062\"]},\"@openzeppelin/upgrades/contracts/Initializable.sol\":{\"keccak256\":\"0x9bfec92e36234ecc99b5d37230acb6cd1f99560233753162204104a4897e8721\",\"urls\":[\"bzzr://f75d88b16fe25a9e19b3512691c496e2bb6d8451bc9a636196c4e17ca9b40201\"]},\"project:/contracts/IVault.sol\":{\"keccak256\":\"0xd1089783090bf846d1937d16fcbc8ecbdb72d750909e3f922b665c7ff27e9d87\",\"urls\":[\"bzzr://89fcd836da883dc7061e4cffabd021a575a2cf35d0df1888a9a0b2d56a0319e0\"]},\"project:/contracts/Vault.sol\":{\"keccak256\":\"0x4676acef8935c2883bce951bb5a051dedfa9a9cb4f6a0e3d1fd42ddb059c5df1\",\"urls\":[\"bzzr://92dd126d873883c6c6f547d73be04f56bc0d12375e213dd3e011e689e1bcebe5\"]},\"project:/contracts/math/FixedPoint.sol\":{\"keccak256\":\"0x5e00c4dc62498b0f400435a2222d8362f19d9f3e60284ea2f38f61a2f64b7007\",\"urls\":[\"bzzr://b18526cc790123f16e970c5a271e71dbafe1479565909febb454dddf4af15a51\"]},\"project:/contracts/math/LogExpMath.sol\":{\"keccak256\":\"0xe8078460aae016460645c05a09602a8021473127853de5e0910138b885b53471\",\"urls\":[\"bzzr://edec9b90a5f598c7fa82fca8c96de4619e95eb3229b8ca3ecc28cc3bed8f204a\"]},\"project:/contracts/math/Math.sol\":{\"keccak256\":\"0x5eb7554e397359fb9978cfcadee54186bb93aa936a8682371238aeecf4a28c9c\",\"urls\":[\"bzzr://69e0df7b3508fe564f053ef0ab1900b96855d59a26b3f74a3bb15e1251e88adf\"]}},\"version\":1}",
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    "source": "// Implementation of the Verified custody vault\r\n// Manages accounts, participants and vault policies\r\n// (c) Kallol Borah, Verified Network, 2021\r\n\r\npragma solidity 0.5.7;\r\npragma experimental ABIEncoderV2;\r\n\r\nimport \"./IVault.sol\";\r\nimport \"./math/Math.sol\";\r\nimport \"./math/FixedPoint.sol\";\r\nimport \"@openzeppelin/contracts-ethereum-package/contracts/ownership/Ownable.sol\";\r\nimport \"@openzeppelin/contracts-ethereum-package/contracts/token/ERC20/IERC20.sol\";\r\nimport \"@openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20Detailed.sol\";\r\n\r\ncontract Vault is IVault, Ownable {\r\n\r\n    using FixedPoint for uint256;\r\n\r\n    //distributor authorized to collect custody fee\r\n    address private distributor;\r\n\r\n    // custody fee as percentage of average assets in balance\r\n    uint256 private custodyfee;\r\n    \r\n    //counter for block timestamp nonce\r\n    uint256 private txid;\r\n\r\n    //mapping of signer address to creator bytes32 id\r\n    mapping(address => bytes32[]) private signers;\r\n\r\n    //mapping signer (its bytes32 ID, eg creator@vault.com) to its address to its token (eg, Google/Apple push notification token)\r\n    mapping(bytes32 => string) private creators;\r\n\r\n    //creating vault by mapping its creator (bytes32 ID, eg, creator@vault.com) to participants (bytes32 IDs, eg, participant@email.com) in the vault\r\n    mapping(bytes32 => bytes32[]) private vaults;\r\n\r\n    //positional index of cosigners for vault. Mapping of vault creator to participant to its position\r\n    mapping(bytes32 => mapping(bytes32 => uint256)) private cosigners;\r\n\r\n    //mapping vault (bytes32 ID, eg creator@vault.com) to participants (bytes32 ID, eg, participant@email.com) to their pin (string)\r\n    mapping(bytes32 => mapping(bytes32 => string)) private pins;\r\n\r\n    //mapping vault (bytes32 ID, eg creator@vault.com) to participants (bytes32 ID, eg, participant@email.com) to their key shard (string)\r\n    mapping(bytes32 => mapping(bytes32 => string)) private shards;\r\n\r\n    //mapping vault (bytes32 ID, eg creator@vault.com) to number of minimum co-signers required for quorum (uint256)\r\n    mapping(bytes32 => uint256) private quorum;\r\n\r\n    //mapping vault (bytes32 ID, eg creator@vault.com) to transactions\r\n    mapping(bytes32 => transaction[]) private transactions;\r\n\r\n    //event that helps notify a participant to confirm PIN and shard\r\n    event NewParticipant(bytes32 creator, bytes32 participant);\r\n\r\n    //event that helps notify a participant to co-sign a transaction\r\n    event NewTransaction(bytes32 creator, bytes32 participant, uint256 txid);\r\n\r\n    //event that helps notify a creator that a transaction has been signed\r\n    event SignTransaction(bytes32 creator, bytes32 participant, uint256 txid);\r\n\r\n    //events signalling acceptance or rejection of co-signing requests\r\n    event SignResponse(bytes32 creator, bytes32 participant, bool confirmation);\r\n\r\n    //event for fee collection\r\n    event feecollection(address indexed platform, uint256 collection, uint256 timestamp);\r\n\r\n    //snapshots for charging custody fee to users\r\n    struct BalanceSnapshot {\r\n        uint256 timestamp;\r\n        uint256 balance;\r\n    }\r\n\r\n    //mapping users to tokens to their balance snapshots\r\n    mapping(address => mapping(address => BalanceSnapshot[])) public userSnapshots;\r\n\r\n    // mapping token address to issuing fee collected\r\n    mapping(address => uint256) private fees;\r\n\r\n    // modifiers\r\n    modifier onlySigner(bytes32 _creator, string memory _id) {\r\n        require(keccak256(abi.encodePacked(creators[_creator])) == keccak256(abi.encodePacked(_id)), 'Not a valid signer');\r\n        _;\r\n    }\r\n\r\n    modifier onlyAuthorized(address _caller) {\r\n        require(_caller==distributor, 'Not a valid distributor');\r\n        _;\r\n    }\r\n\r\n    constructor() public{\r\n        Ownable.initialize(msg.sender);\r\n        distributor = msg.sender;\r\n    }\r\n\r\n    function setDistributor(address _nominee) public onlyAuthorized(msg.sender){\r\n        distributor = _nominee;\r\n    }\r\n\r\n    function setCustodyFee(uint256 _fee) public onlyAuthorized(msg.sender){\r\n        custodyfee = _fee;\r\n    }\r\n\r\n    /**\r\n        This function creates a vault for the creator\r\n        @param _creator vault creator's username, eg, creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n     */\r\n    function createVault(bytes32 _creator, string calldata _id) external {\r\n        require(vaults[_creator].length==0);\r\n        signers[msg.sender].push(_creator);\r\n        creators[_creator] = _id;\r\n        cosigners[_creator][_creator] = vaults[_creator].length;\r\n        vaults[_creator].push(_creator);\r\n    }\r\n\r\n\r\n    /**\r\n        This function resets the vault owner's unique id\r\n        @param _creator the vault's creator (eg, creator@email.com)\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _new vault creator's new unique id\r\n     */\r\n    function resetPin(bytes32 _creator, string calldata _id, string calldata _new) onlySigner(_creator, _id) external {\r\n        creators[_creator] = _new;\r\n    }\r\n\r\n    /**\r\n        This function returns list of vault creators\r\n     */\r\n    function getVaults() external view returns(bytes32[] memory){\r\n        return signers[msg.sender];\r\n    }\r\n\r\n    /**\r\n        This function transfers a vault from the transferor (msg.sender) to transferee\r\n        @param  _creator    vault to transfer\r\n        @param _id          vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param  _transferee address of the new vault operator\r\n     */\r\n    function transferVault(bytes32 _creator, string calldata _id, address _transferee) onlySigner(_creator, _id) external {\r\n        bool found = false;\r\n        for(uint i=0; i<signers[msg.sender].length; i++){\r\n            if(signers[msg.sender][i]==_creator){\r\n                found = true;\r\n                delete signers[msg.sender][i];\r\n            }\r\n        }\r\n        require(found==true, 'Not a valid signer');\r\n        signers[_transferee].push(_creator);\r\n    }\r\n\r\n    /**\r\n        This function returns the vault creator's unique ID (eg, Google/APNS messaging token)\r\n        @param _creator the vault creator (eg, creator@email.com)\r\n        @return the vault creator's unique ID\r\n     */\r\n    function getCreator(bytes32 _creator, string calldata _pin) external view returns(string memory){  \r\n        require(vaults[_creator].length>0, \"Wallet not created\");   \r\n        require(keccak256(abi.encodePacked(pins[_creator][_creator])) == keccak256(abi.encodePacked(_pin)), \"Invalid PIN\");   \r\n        return creators[_creator];        \r\n    }\r\n\r\n    /**\r\n        This function adds a participant to a vault that belongs to its creator\r\n        @param _creator vault creator's username, eg creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _participant vault participant's username, eg participant@email.com\r\n        @param _shard the private key shard of the participant\r\n     */\r\n    function addParticipant(bytes32 _creator, string calldata _id, bytes32 _participant, string calldata _shard) onlySigner(_creator, _id) external {\r\n        //require(vaults[_participant].length>0); //participant does not have a vault yet\r\n        if(keccak256(abi.encodePacked(shards[_creator][_participant]))!=keccak256(abi.encodePacked(_shard)))\r\n            shards[_creator][_participant] = _shard;\r\n        bool present = false;\r\n        for(uint i=0; i<vaults[_creator].length; i++){\r\n            if(vaults[_creator][i]==_participant)\r\n                present = true;\r\n        }\r\n        if(_creator!=_participant && !present){\r\n            cosigners[_creator][_participant] = vaults[_creator].length;\r\n            vaults[_creator].push(_participant); \r\n            emit NewParticipant(_creator, _participant);\r\n        }\r\n    }\r\n\r\n    /**\r\n        This function removes a participant in a vault that belongs to its creator\r\n        @param _creator vault creator's username, eg creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _participant vault participant's username, eg participant@email.com\r\n     */\r\n    function removeParticipant(bytes32 _creator, string calldata _id, bytes32 _participant) onlySigner(_creator, _id) external {\r\n        if(cosigners[_creator][_participant] > 0){\r\n            delete vaults[_creator][cosigners[_creator][_participant]];\r\n            delete shards[_creator][_participant];\r\n            delete pins[_creator][_participant];\r\n        }\r\n    } \r\n\r\n    /**\r\n        This function confirms a participant in the vault when the participant sends its private key shard and PIN\r\n        @param _creator the vault's creator (eg, creator@email.com)\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _participant the vault's participant (eg, participant@email.com)\r\n        @param _pin the PIN number of the participant\r\n        @param _confirmation true or false\r\n     */\r\n    function confirmParticipant(bytes32 _creator, string calldata _id, bytes32 _participant, string calldata _pin, bool _confirmation) onlySigner(_participant, _id) external {\r\n        require(vaults[_creator].length>0);\r\n        if(_confirmation){\r\n            pins[_creator][_participant] = _pin;\r\n            emit SignResponse(_creator, _participant, true);\r\n        }\r\n        else\r\n           emit SignResponse(_creator, _participant, false); \r\n    }\r\n\r\n    /**\r\n        This function defines the number of participants required to co-sign a transaction\r\n        @param _creator the vault's creator (eg, creator@email.com)\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _minParticipants the minimum number of co-signers\r\n     */\r\n    function defineQuorum(bytes32 _creator, string calldata _id, uint256 _minParticipants) onlySigner(_creator, _id) external {\r\n        quorum[_creator] = _minParticipants;\r\n    }\r\n\r\n    /**\r\n        This function retrieves the number of participants required to co-sign a transaction\r\n        @param _creator the vault's creator (eg, creator@email.com)\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n     */\r\n    function getQuorum(bytes32 _creator, string calldata _id) onlySigner(_creator, _id) external view returns(uint256){\r\n        return quorum[_creator];\r\n    }\r\n\r\n    /**\r\n        This function prompts participants to co-sign a transaction on the vault (ie, the creator's address secured by the quorum of participants)\r\n        @param _creator the vault's creator (eg, creator@email.com)\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n     */\r\n    function promptSignatures(bytes32 _creator, string calldata _id) onlySigner(_creator, _id) external {\r\n        bytes32[] memory cs = new bytes32[](vaults[_creator].length);\r\n        txid = block.timestamp == txid ? txid + 1 : block.timestamp;\r\n        transaction memory currentTx = transaction({\r\n            datetime : txid,\r\n            cosigners : cs\r\n        });\r\n        transactions[_creator].push(currentTx);\r\n        for(uint256 i=0; i<vaults[_creator].length; i++){\r\n            emit NewTransaction(_creator, vaults[_creator][i], txid);\r\n        }\r\n    }\r\n\r\n    /**\r\n        This function lets a participant co-sign a transaction\r\n        @param _creator the vault's creator (eg, creator@email.com)\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _participant the vault's participant (eg, participant@email.com)\r\n        @param _tx transaction identifier\r\n        @param _pin the PIN number of the signer (participant)\r\n     */\r\n    function signTransaction(bytes32 _creator, string calldata _id, bytes32 _participant, uint256 _tx, string calldata _pin) onlySigner(_participant, _id) external {\r\n        require(keccak256(abi.encodePacked(pins[_creator][_participant]))==keccak256(abi.encodePacked(_pin)));\r\n        for(uint i=0; i<transactions[_creator].length; i++){\r\n            if(transactions[_creator][i].datetime==_tx){\r\n                for(uint j=0; j<transactions[_creator][i].cosigners.length; j++){\r\n                    if(transactions[_creator][i].cosigners[j]==_participant)\r\n                        break;\r\n                    if(transactions[_creator][i].cosigners[j]==\"\"){\r\n                        transactions[_creator][i].cosigners[j]=_participant;\r\n                        break;\r\n                    }\r\n                }\r\n                emit SignTransaction(_creator, _participant, _tx);\r\n            }\r\n        }\r\n    }\r\n\r\n    /**\r\n        This function lets the creator check if quorum has been achieved for a particular transaction\r\n        @param _creator vault creator's username, eg creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _participant vault participant's username, eg participant@email.com\r\n        @param _txid transaction identifier\r\n     */\r\n    function checkQuorum(bytes32 _creator, string calldata _id, bytes32 _participant, uint256 _txid) onlySigner(_creator, _id) external view returns(bool){\r\n        require(keccak256(abi.encodePacked(pins[_creator][_participant]))!=keccak256(abi.encodePacked(\"\")));\r\n        bool _quorum = false;\r\n        for(uint i=0; i<transactions[_creator].length; i++){\r\n            if(transactions[_creator][i].datetime==_txid){\r\n                uint256 signedCount = 0;\r\n                for (uint256 j = 0; j < transactions[_creator][i].cosigners.length; j++) {\r\n                    if (transactions[_creator][i].cosigners[j] != \"\") {\r\n                        signedCount++;\r\n                    }\r\n                }\r\n                if (signedCount >= quorum[_creator]) {\r\n                    _quorum = true;\r\n                }\r\n            }\r\n        }        \r\n        if(_quorum)\r\n            return true;\r\n        else\r\n            return false;\r\n    }\r\n    \r\n    /**\r\n        This function gets the shard for a participant\r\n        @param _creator vault creator's username, eg creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param _txid transaction identifier \r\n     */\r\n    function getShards(bytes32 _creator, string calldata _id, uint256 _txid) onlySigner(_creator, _id) external view returns(string[] memory){\r\n        for(uint i=0; i<transactions[_creator].length; i++){\r\n            if(transactions[_creator][i].datetime==_txid){\r\n                if(transactions[_creator][i].cosigners.length >= quorum[_creator]){\r\n                    string[] memory keyShards = new string[](transactions[_creator][i].cosigners.length);\r\n                    for(uint j=0; j<transactions[_creator][i].cosigners.length; j++){\r\n                        keyShards[j] = shards[_creator][transactions[_creator][i].cosigners[j]];                        \r\n                    }\r\n                    //delete transactions[_creator][i];\r\n                    return keyShards;\r\n                }\r\n            }\r\n        }\r\n    }\r\n\r\n    /**\r\n        This function takes a snapshot of the token balance for the user\r\n        @param _creator vault creator's username, eg creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param token token address\r\n     */\r\n    function snapshotBalance(bytes32 _creator, string calldata _id, address token) onlySigner(_creator, _id) external {\r\n        //uint256 currentBalance = 2;\r\n        uint256 currentBalance = IERC20(token).balanceOf(msg.sender);\r\n        userSnapshots[msg.sender][token].push(BalanceSnapshot(block.timestamp, currentBalance));\r\n    }\r\n    event totalCount(uint256 total, uint256 count);\r\n    event avgBalance(uint256 fees, uint256 totalCount, uint256 custodyfee);\r\n    /**\r\n        This function calculates the average balance for a user and a token\r\n        @param _creator vault creator's username, eg creator@email.com\r\n        @param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n        @param token token address\r\n        @param fromTime time to start calculating token balance from\r\n        @param toTime time to end calculating token balance \r\n     */\r\n    function calculateAverageBalance(bytes32 _creator, string calldata _id, address token, uint256 fromTime, uint256 toTime) onlySigner(_creator, _id) external {\r\n        BalanceSnapshot[] storage snapshots = userSnapshots[msg.sender][token];\r\n        uint256 total = 0;\r\n        uint256 count = 0;\r\n        uint256 fee = 0;\r\n\r\n        for (uint i = 0; i < snapshots.length; i++) {\r\n            if (snapshots[i].timestamp >= fromTime && snapshots[i].timestamp <= toTime) {\r\n                total += snapshots[i].balance;\r\n                count++;                \r\n            }\r\n        }\r\n        emit totalCount(total, count);\r\n        if (count != 0){\r\n            fee = FixedPoint.divDown(FixedPoint.mulDown(custodyfee, FixedPoint.divDown(total, count)), _computeScalingFactor(IERC20(token)));       \r\n            fee = _downscaleDown(fee, _computeScalingFactor(IERC20(token)));\r\n            emit avgBalance(fees[token], custodyfee, fee);\r\n            IERC20(token).transferFrom(msg.sender, address(this), fee);      \r\n            fees[token] = Math.add(fees[token], fee);\r\n            emit avgBalance(fees[token], custodyfee, fee);\r\n        } \r\n    }\r\n\r\n    /**\r\n        This function gets the shard for a participant\r\n        @param _token vault creator's username, eg creator@email.com\r\n     */\r\n    function collectCustodyFee(address _token) external returns(uint256){\r\n        require(msg.sender==distributor, \"Unauthorized fee collection\");\r\n        uint256 feeCollected = fees[_token];        \r\n        fees[_token] = Math.sub(fees[_token], feeCollected);        \r\n        IERC20(_token).transfer(distributor, feeCollected);\r\n        emit feecollection(address(this), feeCollected, block.timestamp);\r\n        return feeCollected;\r\n    }\r\n\r\n    /**\r\n     * @dev Returns a scaling factor that, when multiplied to a token amount for `token`, normalizes its balance as if\r\n     * it had 18 decimals.\r\n     */\r\n    function _computeScalingFactor(IERC20 token) internal view returns (uint256) {\r\n        // Tokens that don't implement the `decimals` method are not supported.\r\n        uint256 tokenDecimals = ERC20Detailed(address(token)).decimals();\r\n\r\n        // Tokens with more than 18 decimals are not supported.\r\n        uint256 decimalsDifference = Math.sub(18, tokenDecimals);\r\n        return FixedPoint.one() * 10**decimalsDifference;\r\n    }\r\n\r\n    /**\r\n     * @dev Reverses the `scalingFactor` applied to `amount`, resulting in a smaller or equal value depending on\r\n     * whether it needed scaling or not. The result is rounded down.\r\n     */\r\n    function _downscaleDown(uint256 amount, uint256 scalingFactor) internal pure returns (uint256) {\r\n        return FixedPoint.divDown(amount, scalingFactor);\r\n    }\r\n\r\n    /**\r\n     * @dev Applies `scalingFactor` to `amount`, resulting in a larger or equal value depending on whether it needed\r\n     * scaling or not.\r\n     */\r\n    function _upscale(uint256 amount, uint256 scalingFactor) internal pure returns (uint256) {\r\n        // Upscale rounding wouldn't necessarily always go in the same direction: in a swap for example the balance of\r\n        // token in should be rounded up, and that of token out rounded down. This is the only place where we round in\r\n        // the same direction for all amounts, as the impact of this rounding is expected to be minimal (and there's no\r\n        // rounding error unless `_scalingFactor()` is overriden).\r\n        return FixedPoint.mulDown(amount, scalingFactor);\r\n    }\r\n\r\n}",
    "sourcePath": "D:\\Code\\verified-custody\\backend\\contracts\\Vault.sol",
    "ast": {
        "absolutePath": "project:/contracts/Vault.sol",
        "exportedSymbols": {
            "Vault": [
                1949
            ]
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                                                "src": "8670:35:7"
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                                    }
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                        },
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                                    "id": 1148,
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                                                                "name": "pins",
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                                                                "src": "9477:4:7",
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                                                                    "typeIdentifier": "t_mapping$_t_bytes32_$_t_mapping$_t_bytes32_$_t_string_storage_$_$",
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                                                            "id": 1130,
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                        "documentation": "This function confirms a participant in the vault when the participant sends its private key shard and PIN\r\n@param _creator the vault's creator (eg, creator@email.com)\r\n@param _id vault creator's unique id using which it can be reached, eg, its Google/APNS token\r\n@param _participant the vault's participant (eg, participant@email.com)\r\n@param _pin the PIN number of the participant\r\n@param _confirmation true or false\r",
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                                    "stateVariable": false,
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                                            "typeIdentifier": "t_string_storage_ptr",
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                                {
                                    "constant": false,
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                                    "src": "9286:20:7",
                                    "stateVariable": false,
                                    "storageLocation": "default",
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                                        "id": 1105,
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                                                    "typeIdentifier": "t_uint256",
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                                            "storageLocation": "memory",
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                                                "typeIdentifier": "t_struct$_transaction_$367_memory_ptr",
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                                                "name": "transaction",
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                                                    "typeIdentifier": "t_array$_t_bytes32_$dyn_memory_ptr",
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                                                    "typeIdentifier": "t_uint256",
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    "compiler": {
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        "version": "0.5.7+commit.6da8b019.Emscripten.clang"
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    "networks": {
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                            "name": "totalCount",
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                            "name": "custodyfee",
                            "type": "uint256"
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                    "name": "avgBalance",
                    "type": "event"
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            "links": {
                "FixedPoint": "0x4558ba8b96198144B036FE9392D49b2782339f40"
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    "schemaVersion": "3.4.16",
    "updatedAt": "2025-06-20T13:12:00.107Z",
    "networkType": "ethereum",
    "devdoc": {
        "methods": {
            "addParticipant(bytes32,string,bytes32,string)": {
                "params": {
                    "_creator": "vault creator's username, eg creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_participant": "vault participant's username, eg participant@email.com\r",
                    "_shard": "the private key shard of the participant\r"
                }
            },
            "calculateAverageBalance(bytes32,string,address,uint256,uint256)": {
                "params": {
                    "_creator": "vault creator's username, eg creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "fromTime": "time to start calculating token balance from\r",
                    "toTime": "time to end calculating token balance \r",
                    "token": "token address\r"
                }
            },
            "checkQuorum(bytes32,string,bytes32,uint256)": {
                "params": {
                    "_creator": "vault creator's username, eg creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_participant": "vault participant's username, eg participant@email.com\r",
                    "_txid": "transaction identifier\r"
                }
            },
            "collectCustodyFee(address)": {
                "params": {
                    "_token": "vault creator's username, eg creator@email.com\r"
                }
            },
            "confirmParticipant(bytes32,string,bytes32,string,bool)": {
                "params": {
                    "_confirmation": "true or false\r",
                    "_creator": "the vault's creator (eg, creator@email.com)\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_participant": "the vault's participant (eg, participant@email.com)\r",
                    "_pin": "the PIN number of the participant\r"
                }
            },
            "createVault(bytes32,string)": {
                "params": {
                    "_creator": "vault creator's username, eg, creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r"
                }
            },
            "defineQuorum(bytes32,string,uint256)": {
                "params": {
                    "_creator": "the vault's creator (eg, creator@email.com)\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_minParticipants": "the minimum number of co-signers\r"
                }
            },
            "getCreator(bytes32,string)": {
                "params": {
                    "_creator": "the vault creator (eg, creator@email.com)\r"
                },
                "return": "the vault creator's unique ID\r"
            },
            "getQuorum(bytes32,string)": {
                "params": {
                    "_creator": "the vault's creator (eg, creator@email.com)\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r"
                }
            },
            "getShards(bytes32,string,uint256)": {
                "params": {
                    "_creator": "vault creator's username, eg creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_txid": "transaction identifier \r"
                }
            },
            "initialize(address)": {
                "details": "Initializes the contract setting the deployer as the initial owner."
            },
            "isOwner()": {
                "details": "Returns true if the caller is the current owner."
            },
            "owner()": {
                "details": "Returns the address of the current owner."
            },
            "promptSignatures(bytes32,string)": {
                "params": {
                    "_creator": "the vault's creator (eg, creator@email.com)\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r"
                }
            },
            "removeParticipant(bytes32,string,bytes32)": {
                "params": {
                    "_creator": "vault creator's username, eg creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_participant": "vault participant's username, eg participant@email.com\r"
                }
            },
            "renounceOwnership()": {
                "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner.     * > Note: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner."
            },
            "resetPin(bytes32,string,string)": {
                "params": {
                    "_creator": "the vault's creator (eg, creator@email.com)\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_new": "vault creator's new unique id\r"
                }
            },
            "signTransaction(bytes32,string,bytes32,uint256,string)": {
                "params": {
                    "_creator": "the vault's creator (eg, creator@email.com)\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_participant": "the vault's participant (eg, participant@email.com)\r",
                    "_pin": "the PIN number of the signer (participant)\r",
                    "_tx": "transaction identifier\r"
                }
            },
            "snapshotBalance(bytes32,string,address)": {
                "params": {
                    "_creator": "vault creator's username, eg creator@email.com\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "token": "token address\r"
                }
            },
            "transferOwnership(address)": {
                "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner."
            },
            "transferVault(bytes32,string,address)": {
                "params": {
                    "_creator": "vault to transfer\r",
                    "_id": "vault creator's unique id using which it can be reached, eg, its Google/APNS token\r",
                    "_transferee": "address of the new vault operator\r"
                }
            }
        }
    },
    "userdoc": {
        "methods": {
            "addParticipant(bytes32,string,bytes32,string)": {
                "notice": "This function adds a participant to a vault that belongs to its creator\r"
            },
            "calculateAverageBalance(bytes32,string,address,uint256,uint256)": {
                "notice": "This function calculates the average balance for a user and a token\r"
            },
            "checkQuorum(bytes32,string,bytes32,uint256)": {
                "notice": "This function lets the creator check if quorum has been achieved for a particular transaction\r"
            },
            "collectCustodyFee(address)": {
                "notice": "This function gets the shard for a participant\r"
            },
            "confirmParticipant(bytes32,string,bytes32,string,bool)": {
                "notice": "This function confirms a participant in the vault when the participant sends its private key shard and PIN\r"
            },
            "createVault(bytes32,string)": {
                "notice": "This function creates a vault for the creator\r"
            },
            "defineQuorum(bytes32,string,uint256)": {
                "notice": "This function defines the number of participants required to co-sign a transaction\r"
            },
            "getCreator(bytes32,string)": {
                "notice": "This function returns the vault creator's unique ID (eg, Google/APNS messaging token)\r"
            },
            "getQuorum(bytes32,string)": {
                "notice": "This function retrieves the number of participants required to co-sign a transaction\r"
            },
            "getShards(bytes32,string,uint256)": {
                "notice": "This function gets the shard for a participant\r"
            },
            "getVaults()": {
                "notice": "This function returns list of vault creators\r"
            },
            "promptSignatures(bytes32,string)": {
                "notice": "This function prompts participants to co-sign a transaction on the vault (ie, the creator's address secured by the quorum of participants)\r"
            },
            "removeParticipant(bytes32,string,bytes32)": {
                "notice": "This function removes a participant in a vault that belongs to its creator\r"
            },
            "resetPin(bytes32,string,string)": {
                "notice": "This function resets the vault owner's unique id\r"
            },
            "signTransaction(bytes32,string,bytes32,uint256,string)": {
                "notice": "This function lets a participant co-sign a transaction\r"
            },
            "snapshotBalance(bytes32,string,address)": {
                "notice": "This function takes a snapshot of the token balance for the user\r"
            },
            "transferVault(bytes32,string,address)": {
                "notice": "This function transfers a vault from the transferor (msg.sender) to transferee\r"
            }
        }
    }
}