En Blanco y Negro

Recording by Alfredo Zitarrosa.

Recording identifiers

ISRC
UYC120800070
CopyrightID (CopyrightChains transaction hash)
0xd4ebea44346fcba11685c1b52d28420350ce89425d8a65cc6c57753128ab475a
Copyright registration time
2026-07-06T20:01:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1494a63c9dfb4f1afa6353539969d52b524a20671422d5b56eb6cc9fa5da2561

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.