効率

Recording by 藤間 仁.

Recording identifiers

ISRC
JPI101900265
CopyrightID (CopyrightChains transaction hash)
0x8a9cb04022ff61cfd53a89d1bff6685b38dd8289fe5b5a29efa196c0930330bb
Copyright registration time
2026-07-31T07:18:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T08:26:41Z
Bitcoin block
960368
Canonical record hash
sha256:e241d3151384048512cb099018e1ab9d795f06ce309fea3f4750f3d25ad8da4c

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.