さんびきの こぶたの いっぴきが

Recording by 米澤円.

Recording identifiers

ISRC
JPKI01615595
CopyrightID (CopyrightChains transaction hash)
0x00e1370386412254cd6386f0f92c893290afa7ba8070e38ee25c3cfeb2fb834a
Copyright registration time
2026-07-29T16:10:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:fad7466f682ccc36f480c2a000f083e890e35a9e97421731e3d589212ee6da4e

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.