心よ原始に戻れ

Recording by Yoko Takahashi.

Recording identifiers

ISRC
JPKI09700220
CopyrightID (CopyrightChains transaction hash)
0xd4263167bc76c1996bd3645f3d8f1e275fac5fa784ac1cd9e6bb1edbe7251a31
Copyright registration time
2026-06-04T16:28:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T17:25:41Z
Bitcoin block
953536
Canonical record hash
sha256:f1074c98d6ad74d0bab7a71ea9587c35dbd08b61a4c1b370f5f701a66fec775f

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.