1991年のクリスマスソング

Recording by Masaharu Fukuyama.

Recording identifiers

ISRC
JPBV09109430
CopyrightID (CopyrightChains transaction hash)
0x7a04081558cd00b308a4003c9033987e4ea348bc3ca068426ef6213b48038900
Copyright registration time
2026-06-25T18:13:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:d5543db7c99a4cd77a4ba2c4679cd0c0bb28f4af3eee8f3087f6e06cbafc8f2b

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.