The Gondoliers / Act 2: 35. In A Contemplative Fashion, And A Tranquil Frame Of Mind

Recording identifiers

ISRC

GBF077744736

Release date of the album this recording appears on

1977

CopyrightID (CopyrightChains transaction hash)

0xf726c7a7691fe552f87ca76013a3c0a52984e8e2ab0b920bf7e61ae447c60420

Copyright registration time

2026-07-30T19:05:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T19:26:00Z

Bitcoin block

960298

Canonical record hash

sha256:6f42d47cfc0b9fecf1432bedfbf03138418955b7680d23ea15bf914dc3a1d1e2

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF077744736

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.