La Canción y el Poema

Recording by Alfredo Zitarrosa.

Recording identifiers

ISRC
ARF100400556
CopyrightID (CopyrightChains transaction hash)
0x20a3913ec4aba9336628b6bed252f5ecb4f6f00a6e2bba28f7bfb480bb2d6120
Copyright registration time
2026-06-25T13:56:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:f3978de37e2a621d3fd20cb5668e2ddf0848394e7bb05502b47d77c75988aa2d

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.