瞳をとじて

Recording by Ko Shibasaki.

Recording identifiers

ISRC
JPPO02303513
CopyrightID (CopyrightChains transaction hash)
0x06d08c52660069a7d34682b59c3b60d8a7e295ec658a552828a0190379283ee0
Copyright registration time
2026-06-21T21:57:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9f1b5f903b3869bab02d4589257341d41f289666adb0ca8a42d8eba3919313a8

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.