Bitcoin private key in WIF (compressed public key)

ID wifaddrcomp

DatatypeNot PIIidentifier

Bitcoin private key in Wallet Import Format (WIF) for a compressed public key: the Base58Check encoding of the byte 0x80, the 32-byte private key and the flag byte 0x01. Such keys have 52 characters and start with K or L. The value is a secret: whoever knows it can spend the funds. Testnet keys start with c and are not matched; keys for an uncompressed public key are wifaddruncomp.

Parent datatype

Private key or wallet seed (generic) private_key

Categories

Cryptocurrency, Secrets and credentials (passwords, keys, tokens)

Countries

Global (not tied to a country)

Languages

Common to most languages

Check digit

base58check

Quality

83/100 · missing: authoritative source link, mapping (Wikidata, Schema.org, ...)

Metacrafter rules

2 rules (1 by field name, 1 by value)

wifaddrcomp data, common/cryptocurrency.yaml
wifaddrcomp_by_field field, common/cryptocurrency.yaml

Supported by tools

metacrafter

Regular expression

^[KL][1-9A-HJ-NP-Za-km-z]{51}$

Python re syntax.

Examples

Value	Description
L1aW4aubDFB7yfras2S1mN3bqg9nwySY8nkoLmJebSLD5BWv3ENZ	Example from https://allprivatekeys.com/bitcoin-address-format
KwdMAjGmerYanjeui5SHS7JkmpZvVipYvB2LJGU1ZxJwYvP98617	Sample key of the Bitcoin Wiki article on WIF with the compression flag; never import or fund it
L1aW4aubDFB7yfras2S1mN3bqg9nwySY8nkoLmJebSLD5BWv3ENa invalid	last character changed, the checksum fails
5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ invalid	key for an uncompressed public key (wifaddruncomp)

Translations

Language	Name	Description
Russian	Закрытый ключ Bitcoin в формате WIF (сжатый открытый ключ)

Sources

Use this record

Page URL: http://registry.apicrafter.io/datatype/wifaddrcomp
JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
Improve it: edit data/datatypes/any/cryptocurrency/wifaddrcomp.yaml on GitHub