El 28

Recording by Martin Castillo.

Recording identifiers

ISRC
QMFLS1500076
CopyrightID (CopyrightChains transaction hash)
0x83472b4489a6da27092c39a75246998714ad042aec0dbe153d38c9aac08f38a2
Copyright registration time
2026-06-10T05:20:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:e30aaf2d9b45aecded8b9e96354d135d64ac5c2eb89db9a40a56fb3512e36dee

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.