夜凪 (feat. にしな)

Recording identifiers

ISRC

JPWP02471320

Release date of the album this recording appears on

2025-01-29

CopyrightID (CopyrightChains transaction hash)

0xdc4d007d71741059a041069b8a7b3c8e1d42054e3ddc80acfdbdb5cc6d4bd73a

Copyright registration time

2026-06-04T07:32:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:88ef4a427fdb3886a572c448e5bb391534e27a280131d2ec76cd0352b7253a62

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Download the anchored registration record (its SHA-256 is the canonical record hash above)
• Recording evidence summary for ISRC JPWP02471320

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.