凍りの都市

Recording by Kyoko Koizumi.

Recording identifiers

ISRC
JPVI08701510
CopyrightID (CopyrightChains transaction hash)
0x0182c232c39e556f17eb39006b93cc25af7af3c1088da376b98454672263ec2b
Copyright registration time
2026-07-31T20:32:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T21:25:57Z
Bitcoin block
960468
Canonical record hash
sha256:7bbafd7640188d1a9e0649d1689f45e582078230dd663cf0886f042e5eed616f

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.