El Tuerto y Los Ciegos

Recording by Mercedes Sosa.

Recording identifiers

ISRC
ARF099700111
CopyrightID (CopyrightChains transaction hash)
0xf795421bc7a9c4612631dbe45351028af913f9ee11e2c1b3f0b45e7040817458
Copyright registration time
2026-06-19T04:24:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:d770133e9151306700ede5f3ffe22e2cc57c7caa0fba506f048cd7cb4df1547c

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.