Perfect Day

Recording by Calcifer.

Recording identifiers

ISRC
QZK6H2483445
CopyrightID (CopyrightChains transaction hash)
0xbef89aec6509cd5a082b91466f09d6587f5922acdb51a268c622721f30c18087
Copyright registration time
2026-06-06T20:45:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:3a36e20cb94ffd1666586abb983cc51f855c016c64a8d12c927b759669ed85e5

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.