Ruddigore: Duet: "I know a youth"

Recording by Sir Arthur Sullivan.

Recording identifiers

ISRC
USAB10916408
CopyrightID (CopyrightChains transaction hash)
0x87d2c4b487f1b0dd3de13aea99cc7ac1cf5a22f13ddadff5f1c26b3383608d56
Copyright registration time
2026-07-07T08:05:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dfdef697f22eda748bcc66a3eeec860d01303d3bcbed55360182b74892234128

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.