Cool Blue

Recording by Wolfgang Haffner.

Recording identifiers

ISRC
DES299900009
Release date of the album this recording appears on
2010-09-26
CopyrightID (CopyrightChains transaction hash)
0x067e48430d33fae5537d65fa4017f2bd0d1b38253af21e7e098aba7412ed6682

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:f8a9b971aed0bf3325dd1b64a5bf22cdc2158b34a418ff1dfd3239d55abf98c0

What this proof establishes

This recording was released in 2010, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.