seventh heaven

Recording by Kalafina.

Recording identifiers

ISRC
JPU900900027
CopyrightID (CopyrightChains transaction hash)
0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168
Copyright registration time
2026-06-08T01:53:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T01:25:57Z
Bitcoin block
956856
Canonical record hash
sha256:ea6dcb01df9c78cc58253cdeb0d90ea67c8f8d2394a56e8d11fbee9e801bf840

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.