Canto de Nadie

Recording by Alfredo Zitarrosa.

Recording identifiers

ISRC
ARF100300937
CopyrightID (CopyrightChains transaction hash)
0x1067f0a55734807dc7f5f36e5b886c0b2b5558ce76cf6179784d5ddb6e1a53a0
Copyright registration time
2026-06-18T21:31:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:edd49b858abccb708d5ed64d8610818e84d89a3fc273e59c7b205b6ab82b0800

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.