Last Summer in Boyle Heights

Recording by Katzù Oso.

Recording identifiers

ISRC
QM8E51400686
CopyrightID (CopyrightChains transaction hash)
0xda596231ccce98a61d3a6fc2ac2713a81b467524b6784f304f5fc35afb9f51fa
Copyright registration time
2026-06-27T08:38:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:2f9abac3f4c2ce64d0c3b445fdec5237ff682060c91bfd949f155827925f3245

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.