Side 2, Pt. 1: Sum

Recording by Pink Floyd.

Recording identifiers

ISRC
GBN9X1400054
CopyrightID (CopyrightChains transaction hash)
0x2ca60cdf53e9b122f1e2066c865c3d1e89631d6405ea3f053a8aa83a28f44007
Copyright registration time
2026-07-06T21:26:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:da170d80298cba3a0d34283a855a971fc317cc3035d248e05c7a90001ef62e39

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.