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
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:da693d74095d2d30041f01c969916d527bc6b1a1343333934b92394601b83e5e

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.