> For the complete documentation index, see [llms.txt](https://hub.bsvblockchain.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hub.bsvblockchain.org/wiki/bitcoin-script-and-opcodes/script/p2sh.md). # P2SH **Pay to script hash** (P2SH) was deprecated as part of the BitcoinSV Genesis upgrade in February 2020. 1. History of P2SH P2SH transactions were designed to allow funds to be locked with a script hash. To spend bitcoins locked in a P2SH output, the recipient needed to possess a script matching the script hash and a corresponding set of data which could solve the puzzle. It was introduced as [BIP-0016](https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki). P2SH was created after limits and transaction standardisation requirements were introduced, that limited the scope of Bitcoin transactions which could be propagated over the BTC networks to a specific set of templated designs. P2SH enabled users to create a customised Bitcoin script and hash it into a \~34-character P2SH address. These were most commonly used to manage multisignature wallets that required more than 2 of 3 signature rights as was limited by the isStandard transaction test. Bitcoin P2SH addresses always started with `3`. 2. Spending P2SH outputs P2SH outputs remain spendable under network rules however any transactions generated post Genesis using a P2SH output script will be considered invalid by consensus. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://hub.bsvblockchain.org/wiki/bitcoin-script-and-opcodes/script/p2sh.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.