君とさよなら

Recording by Yui Horie.

Recording identifiers

ISRC
JPKI02211187
CopyrightID (CopyrightChains transaction hash)
0xacd632d39e4f71185e8e2de61733e59626deaa32e001caff5ffb9929a51a31d7
Copyright registration time
2026-06-25T18:08:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:7e9fe1f1df901bd6cf67ab1047ac1c8b2871f28ad027b551e3a4ef94bbcd6d84

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.