Angular Blues

Recording by Wolfgang Muthspiel.

Recording identifiers

ISRC
DEB331865502
CopyrightID (CopyrightChains transaction hash)
0x1b9adef6746226a9a82a226c778446fd9f8968f17e0751c51d84a348b13e05df
Copyright registration time
2026-06-23T11:12:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T05:09:12Z
Bitcoin block
956312
Canonical record hash
sha256:bbe6da5ad9864c748ec0d9451bdafa9576117e7bd87377ca03173f791b9681e5

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.