Sour Sour Times

Recording by Portishead.

Recording identifiers

ISRC
GBAQT9400033
CopyrightID (CopyrightChains transaction hash)
0xecaf667aa715770a13af142fddfba25c4a8d2a7bb9a17771877aae876d5d184b
Copyright registration time
2026-06-06T21:05:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:61edbb1004a0120569bcd7c25c28d50698fa7be2158a64c7717ab67830ae972f

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.