Two Sighs

Recording by Michiru Oshima.

Recording identifiers

ISRC
JPD731800560
CopyrightID (CopyrightChains transaction hash)
0xa9cbe6fb09ac2646841fcd111509008b0c5e32730f8537c6546d828b3f308fa6
Copyright registration time
2026-06-21T16:56:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T05:09:12Z
Bitcoin block
956312
Canonical record hash
sha256:83e0c9d07aff48d712cb2c0589206f69de9c052d5a6db46ae5fd40af68ea7c65

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.