Himno del primero de mayo

Recording by BVocal.

Recording identifiers

ISRC
ES7861000309
Release date of the album this recording appears on
2010-12-01
CopyrightID (CopyrightChains transaction hash)
0xa06c9737e05d29e1f55b72bf17f5c9680e53cc9316e64a70ce38ed453e27b06e
Copyright registration time
2026-08-01T00:36:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T01:44:32Z
Bitcoin block
960494
Canonical record hash
sha256:8b63803a3ae35fa020a71997b1020e22813b356c981d2d010786956f9a248173

What this proof establishes

This recording was released in 2010, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.