--- id: "bip32addr" kind: "datatype" status: "stable" is_pii: false categories: ["cryptocurrency", "secrets"] langs: ["common"] quality: 90 url: "http://registry.apicrafter.io/datatype/bip32addr" --- # BIP-32 extended key (xpub, xprv) (`bip32addr`) Extended public or private key of a hierarchical deterministic (HD) wallet in the serialization of BIP-32: 4 version bytes, depth, fingerprint of the parent key, child number, 32-byte chain code and 33-byte key data, followed by a 4-byte checksum and encoded with Base58Check into 111 characters. Mainnet keys start with xpub (public) or xprv (private), testnet keys with tpub or tprv. An xprv value is a wallet secret that controls all funds below it; an xpub value reveals every address of its branch. Keys with the prefixes of SLIP-132 (ypub, zpub and others) use the same structure but are not matched here. - Personal data (PII): no - Categories: Cryptocurrency (cryptocurrency), Secrets and credentials (passwords, keys, tokens) (secrets) - Countries: global - Languages: Common to most languages (common) - Classification: identifier ## Detection Regular expression (Python `re`): ``` ^[xt](?:pub|prv)[1-9A-HJ-NP-Za-km-z]{107}$ ``` Check digit algorithm: `base58check` ## Examples - `xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8` — BIP-32 test vector 1, extended public key of the master node (chain m) - `xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi` — BIP-32 test vector 1, extended private key of the master node (chain m) - `xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet9` (invalid example) — test vector with the last character changed, the checksum fails ## Metacrafter rules 3 rules: 1 match the field name, 2 match values. - `bip32addr_by_field` (field, `common/cryptocurrency.yaml`) - `bip32addr_xprv` (data, `common/cryptocurrency.yaml`) - `bip32addr_xpub` (data, `common/cryptocurrency.yaml`) ## Supported by tools - `metacrafter` ## Translations - ru: Расширенный ключ BIP-32 (xpub, xprv) ## Sources - doc: - other: ## Quality Score 90/100. Missing: mapping (Wikidata, Schema.org, ...). JSON: · Edit: