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(sigil bitcoin primitives)

(sigil bitcoin primitives) — Bitcoin hash combinators

Pure Sigil library providing HASH160, HASH256, and BIP-340 tagged hashes.

(import (sigil bitcoin primitives))
(hash160 #u8(0 1 2 3))  ; => 20-byte bytevector
(hash256 #u8(0 1 2 3))  ; => 32-byte bytevector
(tagged-hash "MyTag" #u8(0 1 2 3))  ; => 32-byte bytevector

Exports

hash160procedure

Compute HASH160 = RIPEMD160(SHA256(data)).

Returns a 20-byte bytevector. Used for P2PKH and P2SH address derivation.

(hash160 "hello")
(hash160 #u8(0 1 2 3))
hash256procedure

Compute HASH256 = SHA256(SHA256(data)).

Returns a 32-byte bytevector. Used for transaction IDs (txid) and block hashes.

(hash256 "hello")
(hash256 #u8(0 1 2 3))
tagged-hashprocedure

Compute a BIP-340 tagged hash.

tagged_hash(tag, x) = SHA256(SHA256(tag) || SHA256(tag) || x)

tag is a UTF-8 string (e.g. "BIP0340/challenge"). x is a bytevector. Returns a 32-byte bytevector.

(tagged-hash "MyApp/v1" #u8(0 1 2 3))
bip0340/challengevariable

(No description)

bip0340/auxvariable

(No description)

bip0340/noncevariable

(No description)

taproot/elementsvariable

(No description)