BIP 16 (P2SH)
Bitcoin Improvement Proposal (BIP) 16 introduced Pay-to-Script-Hash (P2SH) outputs.
Bitcoin Improvement Proposal (BIP) 16 introduced Pay-to-Script-Hash (P2SH) outputs. Activated in 2013, BIP 16 was a significant improvement for Bitcoin’s flexibility, enabling cheaper, more private multi-signature transactions, greater smart contract capability, and backwards compatibility for SegWit, an upgrade which would come several years later. According to BIP 16, P2SH outputs lock bitcoin to the hash of a Bitcoin Script.
In order to spend this bitcoin, the script and any signatures it requires must be provided. P2SH addresses use Base58 encoding and begin with ‘3’. The BIP 16 upgrade was also the subject of much controversy.
It was the first major upgrade to be implemented in Bitcoin after Satoshi Nakamoto, Bitcoin’s creator, disappeared, and several alternative proposals, some with critical flaws, were almost activated instead.
BIP 16 (P2SH) is a Bitcoin protocol specification that defines technical standards for how Bitcoin software operates. Onramp's Bitcoin glossary provides detailed educational resources on BIP 16 (P2SH) and other protocol-level concepts to help investors understand the technology underpinning their Bitcoin holdings.
Frequently Asked Questions
What is BIP 16 (P2SH)?
BIP 16 (P2SH) is a technical standard in the Bitcoin protocol that specifies how certain operations or data structures should be implemented. It helps ensure interoperability between different Bitcoin software implementations.
Why is BIP 16 (P2SH) important for Bitcoin?
BIP 16 (P2SH) improves Bitcoin's functionality, security, or efficiency. Technical standards like this ensure that all participants in the Bitcoin network follow consistent rules, maintaining network consensus.
How does BIP 16 (P2SH) affect Bitcoin investors?
While BIP 16 (P2SH) operates at the protocol level, Onramp ensures that clients benefit from these technical improvements through secure, up-to-date infrastructure for Bitcoin custody and transactions.
