PRELUDE

Recording by 松井 秀太郎.

Recording identifiers

ISRC
JP92N2499204
CopyrightID (CopyrightChains transaction hash)
0xfa087c9548b452f3b5a1a44e42ab1ca6f66df24fb11708738894178fa301b3b0
Copyright registration time
2026-06-25T19:29:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:6065a92cb603e41d1c951f5beb393318f0c0df0425ad2eee2b4fc6481484154e

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.