さよなら

Recording by Off Course.

Recording identifiers

ISRC
JPTO00500128
CopyrightID (CopyrightChains transaction hash)
0x14ba1e5ac684b0427b6c57e1ea7e903c06cad687e811512f4d4eaff20ba00cf5
Copyright registration time
2026-06-05T19:00:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T09:18:01Z
Bitcoin block
957020
Canonical record hash
sha256:db18ebb99f5a8190443c0cd736699964f4f37c3442e4385fc3f0fbf308e08a99

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.