BIP 0381: Difference between revisions
Update BIP text with latest version from https://github.com/bitcoin/bips/blob/9692c70eadc193d8/bip-0381.mediawiki |
Update BIP text with latest version from https://github.com/bitcoin/bips/blob/ac062dc76d046591/bip-0381.mediawiki |
||
Line 103: | Line 103: | ||
** <tt>a9141a31ad23bf49c247dd531a623c2ef57da3c400c587</tt> | ** <tt>a9141a31ad23bf49c247dd531a623c2ef57da3c400c587</tt> | ||
* <tt>pkh(xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0)</tt> | * <tt>pkh(xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0)</tt> | ||
** <tt>76a914ebdc90806a9c4356c1c88e42216611e1cb4c1c1788ac</tt> | ** <tt>76a914ebdc90806a9c4356c1c88e42216611e1cb4c1c1788ac</tt> | ||
* <tt>pkh([bd16bee5/2147483647h]xpub69H7F5dQzmVd3vPuLKtcXJziMEQByuDidnX3YdwgtNsecY5HRGtAAQC5mXTt4dsv9RzyjgDjAQs9VGVV6ydYCHnprc9vvaA5YtqWyL6hyds/0)</tt> | * <tt>pkh([bd16bee5/2147483647h]xpub69H7F5dQzmVd3vPuLKtcXJziMEQByuDidnX3YdwgtNsecY5HRGtAAQC5mXTt4dsv9RzyjgDjAQs9VGVV6ydYCHnprc9vvaA5YtqWyL6hyds/0)</tt> |
Latest revision as of 23:12, 22 April 2024
This page describes a BIP (Bitcoin Improvement Proposal). |
Please do not modify this page. This is a mirror of the BIP from the source Git repository here. |
BIP: 381 Layer: Applications Title: Non-Segwit Output Script Descriptors Author: Pieter Wuille <pieter@wuille.net> Ava Chow <me@achow101.com> Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0381 Status: Draft Type: Informational Created: 2021-06-27 License: BSD-2-Clause
Abstract
This document specifies pk(), pkh(), and sh() output script descriptors. pk() descriptors take a key and produces a P2PK output script. pkh() descriptors take a key and produces a P2PKH output script. sh() descriptors take a script and produces a P2SH output script.
Copyright
This BIP is licensed under the BSD 2-clause license.
Motivation
Prior to the activation of Segregated Witness, there were 3 main standard output script formats: P2PK, P2PKH, and P2SH. These expressions allow specifying those formats as a descriptor.
Specification
Three new script expressions are defined: pk(), pkh(), and sh().
pk()
The pk(KEY) expression can be used in any context or level of a descriptor. It takes a single key expression as an argument and produces a P2PK output script. Depending on the higher level descriptors, there may be restrictions on the type of public keys that can be included. Such restrictions will be specified by those descriptors.
The output script produced is:
<KEY> OP_CHECKSIG
pkh()
The pkh(KEY) expression can be used as a top level expression, or inside of either a sh() or wsh() descriptor. It takes a single key expression as an argument and produces a P2PKH output script. Depending on the higher level descriptors, there may be restrictions on the type of public keys that can be included. Such restrictions will be specified by those descriptors.
The output script produced is:
OP_DUP OP_HASH160 <KEY_hash160> OP_EQUALVERIFY OP_CHECKSIG
sh()
The sh(SCRIPT) expression can only be used as a top level expression. It takes a single script expression as an argument and produces a P2SH output script. sh() expressions also create a redeemScript which is required in order to spend outputs which use its output script. This redeemScript is the output script produced by the SCRIPT argument to sh().
The output script produced is:
OP_HASH160 <SCRIPT_hash160> OP_EQUAL
Test Vectors
Valid descriptors followed by the scripts they produce. Descriptors involving derived child keys will have the 0th, 1st, and 2nd scripts listed.
- pk(L4rK1yDtCWekvXuE6oXD9jCYfFNV2cWRpVuPLBcCU2z8TrisoyY1)
- 2103a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bdac
- pk(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd)
- 2103a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bdac
- pkh([deadbeef/1/2'/3/4']L4rK1yDtCWekvXuE6oXD9jCYfFNV2cWRpVuPLBcCU2z8TrisoyY1)
- 76a9149a1c78a507689f6f54b847ad1cef1e614ee23f1e88ac
- pkh([deadbeef/1/2'/3/4']03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd)
- 76a9149a1c78a507689f6f54b847ad1cef1e614ee23f1e88ac
- pkh([deadbeef/1/2h/3/4h]03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd)
- 76a9149a1c78a507689f6f54b847ad1cef1e614ee23f1e88ac
- pk(5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss)
- 4104a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235ac
- pk(04a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235)
- 4104a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235ac
- pkh(5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss)
- 76a914b5bd079c4d57cc7fc28ecf8213a6b791625b818388ac
- pkh(04a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235)
- 76a914b5bd079c4d57cc7fc28ecf8213a6b791625b818388ac
- sh(pk(L4rK1yDtCWekvXuE6oXD9jCYfFNV2cWRpVuPLBcCU2z8TrisoyY1))
- a9141857af51a5e516552b3086430fd8ce55f7c1a52487
- sh(pk(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd))
- a9141857af51a5e516552b3086430fd8ce55f7c1a52487
- sh(pkh(L4rK1yDtCWekvXuE6oXD9jCYfFNV2cWRpVuPLBcCU2z8TrisoyY1))
- a9141a31ad23bf49c247dd531a623c2ef57da3c400c587
- sh(pkh(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd))
- a9141a31ad23bf49c247dd531a623c2ef57da3c400c587
- pkh(xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U/2147483647'/0)
- 76a914ebdc90806a9c4356c1c88e42216611e1cb4c1c1788ac
- pkh([bd16bee5/2147483647h]xpub69H7F5dQzmVd3vPuLKtcXJziMEQByuDidnX3YdwgtNsecY5HRGtAAQC5mXTt4dsv9RzyjgDjAQs9VGVV6ydYCHnprc9vvaA5YtqWyL6hyds/0)
- 76a914ebdc90806a9c4356c1c88e42216611e1cb4c1c1788ac
- pk(xprv9uPDJpEQgRQfDcW7BkF7eTya6RPxXeJCqCJGHuCJ4GiRVLzkTXBAJMu2qaMWPrS7AANYqdq6vcBcBUdJCVVFceUvJFjaPdGZ2y9WACViL4L/0)
- 210379e45b3cf75f9c5f9befd8e9506fb962f6a9d185ac87001ec44a8d3df8d4a9e3ac
- pk(xpub68NZiKmJWnxxS6aaHmn81bvJeTESw724CRDs6HbuccFQN9Ku14VQrADWgqbhhTHBaohPX4CjNLf9fq9MYo6oDaPPLPxSb7gwQN3ih19Zm4Y/0)
- 210379e45b3cf75f9c5f9befd8e9506fb962f6a9d185ac87001ec44a8d3df8d4a9e3ac
Invalid descriptors
- pk() only accepts key expressions: pk(pk(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd))
- pkh() only accepts key expressions: pkh(pk(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd))
- sh() only acceps script expressions: sh(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd)
- sh() is top level only: sh(sh(pkh(03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd)))
Backwards Compatibility
pk(), pkh(), and sh() descriptors use the format and general operation specified in 380. As these are a wholly new descriptors, they are not compatible with any implementation. However the scripts produced are standard scripts so existing software are likely to be familiar with them.
Reference Implementation
pk(), pkh(), and sh() descriptors have been implemented in Bitcoin Core since version 0.17.