Developer Builds Time-Locked Bitcoin Script Using CSV and P2SH on Testnet

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A developer has published a detailed technical walkthrough on building a time-locked Bitcoin script using Python, combining P2SH, CSV (CheckSequenceVerify), and P2PKH mechanisms. The project creates a Bitcoin address that can only be spent after a minimum of three confirmed blocks, enforcing a relative timelock at the script level. The full implementation was tested and broadcast as a real transaction on the Bitcoin testnet, with on-chain data publicly verifiable via a mempool explorer link. The tutorial covers the complete workflow from constructing the redeem script and generating a P2SH address to signing and broadcasting the spending transaction. It aims to bridge the gap between conceptual Bitcoin scripting knowledge and hands-on, code-level implementation.

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