Introduction et variations sur l'air Malbrough, Op. 28

Recording by Fernando Sor.

Recording identifiers

ISRC
ES7141500024
CopyrightID (CopyrightChains transaction hash)
0x52d8d84a05d0e2f47d98464594ca5aa4b9774545ea09c3b9bc2b224213a00d56
Copyright registration time
2026-07-07T02:52:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a1a26a63f260527e6a740cbd0a9318a16c2e8e846b75f833a64cea0db1664ae1

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.