Al Revés

Recording by Calibre 50.

Recording identifiers

ISRC
USUM71200222
CopyrightID (CopyrightChains transaction hash)
0x336c71dd9f1db29ec389d40761cee40ba3b160baa38a8922694d3ee881b03577
Copyright registration time
2026-06-07T04:55:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:12f91442fc9b3613e2585456c125f29b5798af0be2c26308d9d8f88eaa452576

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.