BLUE SHARK

Recording by Masayoshi Takanaka.

Recording identifiers

ISRC
JPTO09525280
CopyrightID (CopyrightChains transaction hash)
0x083f54b90083682fdf4b14d08f4ca1da1a1d316006848b3d549dcb3877f23ebf

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T23:52:38Z
Bitcoin block
960170
Canonical record hash
sha256:ea43a2cbd777cacc9abe098d5ca808773215c56d177d55105439968c262db7a9

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.