The Mikado: Act One, Overture

Recording by Gilbert & Sullivan.

Recording identifiers

ISRC
GBJ2F1111964
CopyrightID (CopyrightChains transaction hash)
0x66e759281258df4cd32eb7c0b7135cf4544e94a849f12b123e05f1c67dcdc7d0
Copyright registration time
2026-07-07T19:23:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:5d313ca23ff1f13b4d9bebc226229a0d4ca568c48833711ff010b5a2361e81a7

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.