It Ain't Necessarily So

Recording by George Gershwin.

Recording identifiers

ISRC
GBEKZ0500038
CopyrightID (CopyrightChains transaction hash)
0xbd2606cb579f72bf0df034f98d3d0edb98a3719bd54eb745b4a8f6e41179e66d
Copyright registration time
2026-07-06T23:14:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a33fcdfb281747da5c90781dbe02d7d278508e5755b1d8e06f260c34d5d12cbd

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.