Circus II

Recording by 馬場智章.

Recording identifiers

ISRC
JPPO02402913
CopyrightID (CopyrightChains transaction hash)
0xa500e8af9ba2500e0b98675bf0d894c762f86f59eea91af46648eb2299e9e459
Copyright registration time
2026-06-18T14:44:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:393d48bfba416c0c0559ed54d15302fcff0a341c92e94363b74666449c19a236

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.