Goodbye

Recording identifiers

ISRC

HKB252200103

CopyrightID (CopyrightChains transaction hash)

0x2b96a1c6e8860b8ca6f0786cf6ed187956762edd4eb92fb13882d0011eb68563

Copyright registration time

2026-07-31T23:33:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T23:51:35Z

Bitcoin block

960481

Canonical record hash

sha256:099f4d17c3b03867f4bf706e11299538fe0f794c2a19a0e0ac0b9f755ad3f073

• 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.