Struct DustSweeper 

pub struct DustSweeper { /* private fields */ }

DustSweeper provides functionality to identify and clean up dust UTXOs from a Bitcoin wallet in a privacy-preserving way.

Privacy Features

• Groups UTXOs by address to avoid linking different addresses
• Creates separate transactions for each address’s dust

Example

use bitcoincore_rpc::{Auth, Client};
use dust_cleaner::DustSweeper;

let rpc_client = Client::new(
    "http://localhost:18443",
    Auth::UserPass("user".to_string(), "pass".to_string())
).unwrap();

let sweeper = DustSweeper::new(rpc_client, 1000);
let dust_utxos = sweeper.get_dust_utxos().unwrap();

Implementations

impl DustSweeper

pub fn new(rpc_client: Client, threshold: u64) -> Self

Creates a new DustSweeper instance

Arguments

• rpc_client - Bitcoin Core RPC client
• threshold - Amount in satoshis below which UTXOs are considered dust

pub fn get_dust_utxos(&self) -> Result<Vec<ListUnspentResultEntry>, Error>

Retrieves all UTXOs below the dust threshold from the wallet

Returns

• Result<Vec<ListUnspentResultEntry>> - List of dust UTXOs or RPC error

pub fn build_psbts_burn( &self, dust_utxos: Vec<ListUnspentResultEntry>, fee: u64, burn_addr: &str, ) -> Result<Vec<Psbt>, Error>

Creates PSBTs to burn dust UTXOs to a specified address

Arguments

• dust_utxos - Vector of dust UTXOs to burn
• fee - Transaction fee in satoshis
• burn_addr - Address to send dust to

Returns

• Result<Vec<Psbt>> - Vector of unsigned PSBTs or error

pub fn psbt_to_base64(psbt: &Psbt) -> String

Converts a PSBT to base64 encoding for transport

Arguments

• psbt - The PSBT to encode

Returns

• String - Base64 encoded PSBT