独り遊戯

Recording by Kyoko Koizumi.

Recording identifiers

ISRC
JPVI08201520
CopyrightID (CopyrightChains transaction hash)
0x8d2188d2cb37ff5d590ac387ad38fd1b314e99085edb2d2945b1e0018915ff30
Copyright registration time
2026-07-07T04:48:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:27272c43019ee15f227469b7cda0b18d95edf0feca11ec0654aa25c6f3eb6b10

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.