守るべきもの

Recording by Rica Matsumoto.

Recording identifiers

ISRC
JPZ921410715
CopyrightID (CopyrightChains transaction hash)
0xad7348aa3d9173c7758591bff5a31df2299beb0024bf0cfc9b818f0a5dd3059d
Copyright registration time
2026-07-07T07:06:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:cac6dc8a99b11bd24f46ae1af7bef7b85f369110ca3cf0bc86359ba5b4ab567f

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.