Sullivan: The Pirates of Penzance or The Slave of Duty, Act 1: Recitative, "What shall I do?" (Frederic) - No. 5, Chorus of Girls, "Climbing over rocky mountain" (Edith, Kate, Girls)

Recording identifiers

ISRC

GBAYD8700181

Release date of the album this recording appears on

2011-06-13

CopyrightID (CopyrightChains transaction hash)

0x5c9be6dc663f2c2138299c7855ff67a7db075351da444e00ca4200f116cf3651

Copyright registration time

2026-08-01T00:50:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T01:44:32Z

Bitcoin block

960494

Canonical record hash

sha256:d71384206dfe0208c29c5c31193be063d26cb7ac7c704f6e539dccba05833014

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYD8700181

What this proof establishes

This recording was released in 2011, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.