El 21

Recording by Abelardo Retamoza.

Recording identifiers

ISRC
TCAIQ2492576
CopyrightID (CopyrightChains transaction hash)
0x78052985bedc192eb9a8232e3bfc4152ad4a876ed3be452c7c0f6960bec4f9bb
Copyright registration time
2026-07-07T17:57:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:350750880fcff048f27b2c6bb73acd570bf532f00b9fd5bf1e1066ab2f0982ca

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.