友よ

Recording by Yasuharu Takanashi.

Recording identifiers

ISRC
JPE301600469
CopyrightID (CopyrightChains transaction hash)
0x968196d0044736c99893a125d5e8862d69409f2a659993a9592b56fe192ef3dd
Copyright registration time
2026-06-07T12:57:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:4a682b2b225bb7274a4c31b99cab5fdeaf2d139facd6e42b1dbcf89a69ff921d

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.