初恋

Recording by Hikaru Utada.

Recording identifiers

ISRC
JPU901801090
CopyrightID (CopyrightChains transaction hash)
0xe4bb4177a9ea5a86b9a12a440ee1493fbe8ee7aa9e8c7c26edcb0406f7abd667
Copyright registration time
2026-06-04T08:07:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:188674681cce1344b971fdbff3be4dc83ed1ebcda7e7dc7e43bd0f3aca7e42e0

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.