La Linea Del Frente

Recording by Fermin Muguruza.

Recording identifiers

ISRC
ES90A0800045
CopyrightID (CopyrightChains transaction hash)
0xe67a272b622001f638a71889591d4c62939bdf2f9ff336b4f05eecdf4ad76b31
Copyright registration time
2026-06-10T04:50:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:ea34b567c731998ca25cc33734cd22ec83bcf7343c99c8bb8efb9e90c523cdb5

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.