trust

Recording by 松澤由美.

Recording identifiers

ISRC
JPK631900238
CopyrightID (CopyrightChains transaction hash)
0x11b691ca5f78b368dd7a924daead03daf587db7ddf236889114ccbb5aa439867
Copyright registration time
2026-07-30T15:06:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T15:42:38Z
Bitcoin block
960273
Canonical record hash
sha256:4bcf1a8889bdd7c6542c714624906ae6911a0c6f1065dd542eb39a326b41dca0

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.