import type * as bitcoin from "bitcoinjs-lib";
/** Bitcoin network type from bitcoinjs-lib. */
export type Network = bitcoin.Network;
/**
 * BIP84 derivation coordinates.
 * account/change/index are non-negative; change is 0 (external) or 1 (change)
 */
export type Derivation = {
    account: number;
    change: 0 | 1;
    index: number;
};
/** Derived receive address and its BIP84 path. */
export type ReceiveAddress = {
    address: string;
    path: string;
};
/**
 * UTXO representation, value in satoshis.
 * scriptPubKey may be provided to avoid extra lookups.
 */
export type Utxo = {
    txid: string;
    vout: number;
    value: number;
    scriptPubKey?: string;
};
/** Address balance summary in satoshis. */
export type Balance = {
    funded: number;
    spent: number;
};
/**
 * Minimal Esplora-compatible provider interface.
 */
export interface Provider {
    getAddressUtxos(address: string): Promise<Utxo[]>;
    getAddressBalance(address: string): Promise<Balance>;
    broadcast?(rawHex: string): Promise<{
        txid: string;
    }>;
}