Digression

Recording by Lennie Tristano Sextet.

Recording identifiers

ISRC
USCA29600744
CopyrightID (CopyrightChains transaction hash)
0x5ce6207a8dc78e736dffafbcf5f11885b140c0664b936f3b63948b64bf8674ff
Copyright registration time
2026-07-06T07:39:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T11:43:09Z
Bitcoin block
957032
Canonical record hash
sha256:50865a619092a62220be56f8b15bbf5441d0db1f379115e7bb8bac4e4dfb89f9

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.