期待と不安

Recording by 櫻井美希.

Recording identifiers

ISRC
JPL801910032
CopyrightID (CopyrightChains transaction hash)
0xbd5560a582b65615ec158601682c70cb0de9a9bf1a772087443e2a755a3e3294
Copyright registration time
2026-07-07T02:07:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:61a17ccf7c0ffc2b2ee21ab4c3e69fe6dc7dd748afeecc607c706b76b7266e10

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.