Ruddigore: Duet: "You understand?"

Recording by Sir Arthur Sullivan.

Recording identifiers

ISRC
USAB10916421
CopyrightID (CopyrightChains transaction hash)
0x27db0cf9cea1499024ce3a39fa2574fb4541372bc0d4fe3da8da0831f3e08c57
Copyright registration time
2026-07-07T12:49:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0a69bbbe5342db805f07249e12959472ba64d829d084541daf7a9a1e1c0a3898

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.