スペアキー

Recording by Yu Takahashi.

Recording identifiers

ISRC
JPWP01370774
CopyrightID (CopyrightChains transaction hash)
0xb7e8796f2606210e5be7c5e18bfce04e53a69e3930048ee9c4c05e60413f1616
Copyright registration time
2026-06-25T20:26:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:d6d4ca21abd804205526955e9e0c0216976a0d246f3dd6d9a44039817b384a37

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.