Optigan I

Recording by Blur.

Recording identifiers

ISRC
GBAYE9900147
CopyrightID (CopyrightChains transaction hash)
0x6f049fd97670bed242bf84afe4b79d09ed86b8ee61b19bda3243bae859ad64c9
Copyright registration time
2026-06-06T19:22:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:9e12e68cc93a114fa470f6a3e0d53eb3b9b5c329b2b1593cbb9510904faae693

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.