白鳥の歌

Recording by Takashi Kako.

Recording identifiers

ISRC
JPN200600035
CopyrightID (CopyrightChains transaction hash)
0xd14c8bfcef6427899ecf23337586761ee3d54e4facc2adebfc881bb834df7b61
Copyright registration time
2026-07-07T18:26:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:22c52c291e3dc88af0a88c246acfd1d6e1b3d22149824d2cdeb863ba419d7904

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.