En El Ultimo Rincón

Recording identifiers

ISRC

MX2971100099

CopyrightID (CopyrightChains transaction hash)

0x9c5706ac17320d2722eaeb3402ac22160953f89b76a6c92131ec8bff0a4d1e09

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T15:42:38Z

Bitcoin block

960273

Canonical record hash

sha256:ffbed9be7d96f9fd2d76243783eb73d4b355c387d8679f5128a116865f56787d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.