Blues De La Nacional II

Recording by La Guardia.

Recording identifiers

ISRC
ES5630702615
CopyrightID (CopyrightChains transaction hash)
0x48abdb2c32919b583de3c24376f42e731cb7a7c0d6dc05c03cf370298e1b7f44
Copyright registration time
2026-06-26T04:21:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:1c184e4dfad0b6f92f11e9cd0a8eedc9942fa40fdcb55534844dcee48e5509fe

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.