さよならだけは言わないで

Recording by Mayumi Itsuwa.

Recording identifiers

ISRC
JPSR07801730
CopyrightID (CopyrightChains transaction hash)
0xb2bec0c22ce286450037f409b879c347fe1f3ef232204ed146233a79c8797ac6
Copyright registration time
2026-07-31T19:53:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T20:22:46Z
Bitcoin block
960459
Canonical record hash
sha256:c7656aebd426348f5591c93f60af152509ff319a5547bfab60e3db93f8ddcb59

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.