ちょうちょう

Recording by 渡辺かおり.

Recording identifiers

ISRC
JPCR00705660
CopyrightID (CopyrightChains transaction hash)
0x722d20c2e5f6453ee5dcb37b78883d60fdb0842581f2e5727bb2883d5cffcc4b
Copyright registration time
2026-07-29T12:25:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T12:41:21Z
Bitcoin block
960106
Canonical record hash
sha256:1a0362bdc9dc328c9851ea080ac40fd644123f4416412e75ffb1b562e5e7876a

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.