Sign - Instrumental

Recording by 内田彩.

Recording identifiers

ISRC
JPS231900013
CopyrightID (CopyrightChains transaction hash)
0x708abbbc3feb1fbd7196e9910e6c4ee923d7818e6b42e0dddf0b0e989f9d3e99
Copyright registration time
2026-07-07T09:39:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:cff8eea41f9117ecf3e14b96505f64b31ce94bd2f53dd0a36240890042427265

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.