danielabrozzoni

Spendere Bitcoin dal terminale usando bitcoin-cli

In questo (si spera corto) tutorial proveremo a spendere alcuni Bitcoin utilizzando bitcoin-cli.

In questo tutorial uso la rete signet, ma ovviamente gli stessi passaggi funzionano anche per mainnet, testnet, e regtest.

Prerequisiti:

• bitcoind avviato e syncato
• Avere alcuni sats da spendere con bitcoin-cli (potete ottenerli con un faucet se siete su signet/testnet, o minando su regtest)

danielabrozzoni

use bdk::{Wallet, SyncOptions, FeeRate, SignOptions};
use bdk::wallet::AddressIndex;
use bdk::database::MemoryDatabase;
use bdk::blockchain::ElectrumBlockchain;
use bdk::electrum_client::Client;
use bdk::bitcoin::{self, Address};
use std::str::FromStr;
use bdk::blockchain::Blockchain;

fn main() -> Result<(), bdk::Error> {

danielabrozzoni

Planning module

• Right now BDK has a policy module: when creating a transaction I can specify which policy I want to use to spend my utxos
  • or(and(A,B), C): either A+B or C by themselves
  • when I create the transaction, I decide if I want to spend with the A+B path, or if I want to spend with the C path
  • UX is not great, specifying which policy to use can be difficult
• Replacing the policy module with this planning idea
• Instead of specifying the policy I want to use to spend, I specify the “assets” (keys, timelocks, hash preimages) I have/want to use, and the planning module will find out the cheapest way for me to spend my coins
  • or(and(A,B),C), I tell the planning module that I own the keys A, B, C
    • The planning module will tell me to spend using the key C -> it’s cheaper than using A+B
  • or(A, and(B, older(10))), I tell the planning module I only have B

danielabrozzoni

daemon = false
log_level = "trace"
data_dir = "./data/coordinatord_data"

postgres_uri = "postgresql://revault:revault@localhost/postgres"
managers = [
    # REPLACE ME
    "60eefc8ffef57c9e3d36d68a7ffdde21b10d3ec5cdcfa9e9a5e24349ef51cc0a",
]

danielabrozzoni

digits = "31622776601683795"

def find(n):
    k = 0
    last_2 = 1
    last_5 = 1
    while True:
        if first_n_digits(last_2, n) == digits[:n] \
        and first_n_digits(last_5, n) == digits[:n]:
            return k

danielabrozzoni

backend = "glx";
glx-no-stencil = true;
paint-on-overlay = true;
vsync = "opengl-swc";

danielabrozzoni

syntax on
set nocompatible              " be iMproved, required
filetype indent on
set expandtab " use spaces
set shiftwidth=4
set softtabstop=4
set autoindent
set smartindent
set relativenumber
set number

danielabrozzoni

# This file has been auto-generated by i3-config-wizard(1).
# It will not be overwritten, so edit it as you like.
#
# Should you change your keyboard layout some time, delete
# this file and re-run i3-config-wizard(1).
#

# i3 config file (v4)
#
# Please see https://i3wm.org/docs/userguide.html for a complete reference!