Key Signator

Recording by DAVID GRISMAN QUINTET.

Recording identifiers

ISRC
USAD49900595
CopyrightID (CopyrightChains transaction hash)
0x9f921d01a19bbe2e44b83ec6a064612bd2378bed2dfd58a3c1e67c3a8bf5100d
Copyright registration time
2026-07-06T18:26:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-22T00:57:31Z
Bitcoin block
957118
Canonical record hash
sha256:73dd381155613b54c795d51aeddf25684bb7f6d959886c205894b21ac1662621

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.