src.cpp

#include <bitcoin/bitcoin.hpp>
#include <bitcoin/client.hpp>
#include <secp256k1_bulletproofs.h>

using namespace bc;
using namespace bc::client;
using namespace std;

int main(int argc, char** argv) {
    // Connect to the Bitcoin network
    p2p::network network = p2p::network::mainnet;
    p2p::p2p_client client(network);
    client.start();

    // Generate a random 32-byte secret key
    data_chunk sk(32);
    pseudo_random_fill(sk);

    // Generate a random ordinal value
    uint64_t ordinal = 123456789;

    // Generate an inscription message
    data_chunk message(8);
    auto* ptr = reinterpret_cast<uint64_t*>(message.data());
    *ptr = ordinal;

    // Generate a Pedersen commitment to the ordinal value
    secp256k1_pedersen_commitment comm;
    secp256k1_pedersen_commit(ctx, &comm, sk.data(), &ordinal, nullptr, nullptr);

    // Generate a Bulletproof for the commitment
    secp256k1_bulletproof_generators gens;
    secp256k1_bulletproof_generators_init(&gens, 64, 1);
    secp256k1_bulletproof_proof proof;
    data_chunk blinding_factor(32);
    pseudo_random_fill(blinding_factor);
    secp256k1_bulletproof_prove(ctx, &proof, &gens, &comm, nullptr, nullptr, blinding_factor.data(), &ordinal, message.data(), message.size());

    // Encode the inscription data as a hex string
    data_chunk data(80);
    auto* data_ptr = reinterpret_cast<uint8_t*>(data.data());
    memcpy(data_ptr, proof.data, proof.length);
    data_ptr += proof.length;
    memcpy(data_ptr, message.data(), message.size());
    std::string hex_data = encode_base16(data);

    // Create a Bitcoin transaction that includes the inscription data
    payment_address output_address("1BitcoinAddress");
    output output_to(output_address, 0);
    output output_data(hex_data.size(), data.begin());
    transaction tx;
    tx.inputs.push_back(input());
    tx.outputs.push_back(output_to);
    tx.outputs.push_back(output_data);

    // Sign the transaction with the secret key
    auto key = wallet::ec_private(sk);
    auto sighash_type = tx.version() >= 2 ? signature_hash_algorithm::sighash_all | signature_hash_algorithm::forkid : signature_hash_algorithm::sighash_all;
    endorsement sig = key.sign_hash(tx.signature_hash(0, sighash_type));

    // Add the signature to the transaction input
    tx.inputs[0].script_sig = script(script::operations{operation(sig), operation(to_chunk(key.public_key().point()))});

    // Broadcast the transaction to the Bitcoin network
    auto res = client.transaction_pool_broadcast(tx);
    if (!res) {
        cerr << "Error: failed to broadcast transaction: " << res.error().message() << endl;
        return 1;
    }

    cout << "Inscription added to the Bitcoin blockchain!" << endl;

    return 0;
}