Today

Recording by 川村ゆみ.

Recording identifiers

ISRC
JPK651668625
CopyrightID (CopyrightChains transaction hash)
0x2b01cb71578987286d508edb91f9af75d42760602765dd6d33a39a214b6aedf0
Copyright registration time
2026-06-05T11:40:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:9a060048cb668f3b4db4aac1afe369d0ecce2aff08d66e77dac8710950b0b8a0

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.