プロローグ

Recording by Off Course.

Recording identifiers

ISRC
JPTO08300140
CopyrightID (CopyrightChains transaction hash)
0x223e02ccfa8da098048890efb86fe2a558042e2671b3da719ab90378f3a43170
Copyright registration time
2026-07-06T10:28:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T20:41:57Z
Bitcoin block
957084
Canonical record hash
sha256:5a96809d6a418ddb56670f9057703948e7b33186acb309b569adb12b49b66f74

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.