Whale Song

Recording by Yu Sakai.

Recording identifiers

ISRC
JPPO02201603
CopyrightID (CopyrightChains transaction hash)
0xbb1d738efde0daecfb05c4afb10e6d304f69f2a7d39abf44f7c2ec008fb872b2
Copyright registration time
2026-07-31T17:41:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:4aeaf71c22f8b3e706ff5c9c52cb412772df80345faca42383297fb1a7bff416

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.