So What / Impressions - Live At Massey Hall / 2001

Recording by Herbie Hancock.

Recording identifiers

ISRC
USGR10200196
CopyrightID (CopyrightChains transaction hash)
0xe7ab97803d8def418257995a400cd6e74e97512536cb10a9f9e2d4e85af6bec5
Copyright registration time
2026-06-20T05:25:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a09e30f42be62e8a53c19d410434d5f4ef655f5764f513b994cc0a7a71ffd7a9

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.