砂時計

Recording by 春猿火.

Recording identifiers

ISRC
JPY392401946
CopyrightID (CopyrightChains transaction hash)
0xa9c1df0f2a53677d1bb2ed3d301a2a423adea539764e701951b70f8d1005d1c3
Copyright registration time
2026-06-20T09:25:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:78689dc81ee0156dc3e31fdae2d8daf78808d18c18a3276f4e1df69e78dac012

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.