Canción para Otto y Elsa

Recording by Sergio Díaz De Rojas.

Recording identifiers

ISRC
CAN112201210
CopyrightID (CopyrightChains transaction hash)
0x4fb5bc634dbf3aa68b8cec7408e8f269571feb92c0a24735ac27c6a4acd82a1b
Copyright registration time
2026-06-05T21:10:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:8ec420dce03cdfc88d9083e5a1f755f06cea54d7280867a7db48e43eb8d90582

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.