Regrets

Recording by 内山 修作.

Recording identifiers

ISRC
JPE101900740
CopyrightID (CopyrightChains transaction hash)
0xeab4034b0e442a4412b556d6b9452763b0564ca5b7300d31b5df5e2ae09090c1
Copyright registration time
2026-06-22T04:41:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:e23bf7c2b15031bd5330e5841b3f029bb7cf47d056786aab0d0378de20a39d33

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.