Calypso Island

Recording identifiers

ISRC

GBCKG1400460

CopyrightID (CopyrightChains transaction hash)

0xf805d4f970da9c10874b7dcbfb3a6a576d69cb24b94f8def146009ca5b78eb30

Copyright registration time

2026-07-06T18:37:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:05f9ae564f9b2678f34590946282f04d695255aa5b07c656501f9a9c08276694

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.