Simplified Bitcoin implementation, for educational purposes.
- Proof of work scheme: block rewards, halvings, difficulty adjustments and transaction fees
- Peer-to-peer network simulation (based on Docker)
- Unconfirmed transactions pool (mempool)
- Transactions merkle tree structure
- Blocks and UTXOs index storage
- RPC API
- Hierarchical deterministic wallet (BIP32)
- Mnemonic phrases (BIP39)
# Start network
docker build -t btcs .
docker compose up
# Get an address from node2
# By default, all nodes have the account "satoshi" created
docker exec -it node2 sh
btcs wallet getnewaddress satoshi
# Log into the miner node and send coins to node2
docker exec -it node1 sh
btcs sendtx satoshi --to <node2 address> --amount <amount>
- Block rewards start at 50 BTC and are halved every 21 blocks.
- The initial difficulty is set to
0x1e04ffff(~2^234), adjustments occur every 16 blocks. - The target time per block is 20 seconds.