Gradus prohibitus

Recording by 梶浦 由記.

Recording identifiers

ISRC
JPE301100656
CopyrightID (CopyrightChains transaction hash)
0xe25c01b6acbb3b6920959cf5669cedf367b6d51e12ba8e39a4d4e648bd64e0a1
Copyright registration time
2026-06-07T18:04:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:1f96053189ce1967f47ac4525be45cd078c18118db7b61c388c84e815e443068

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.