The Gondoliers / Act 1: 7. And now to Choose Our Brides!

Recording identifiers

ISRC

GBF077744708

Release date of the album this recording appears on

1977

CopyrightID (CopyrightChains transaction hash)

0x48e880a5177fa83cc5c3de31540d8e4a2d57ede9ceaa44e7e59693ce0e1ed794

Copyright registration time

2026-07-30T02:27:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T02:37:10Z

Bitcoin block

960200

Canonical record hash

sha256:6bc7aebe93122f69d01cc3d0fa6cc1ae5113e83f35fdae8617be0aee7e90a6b5

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF077744708

What this proof establishes

This recording was released in 1977, 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.