Forty

Recording by Koora.

Recording identifiers

ISRC
QZW9L2468301
CopyrightID (CopyrightChains transaction hash)
0x762b380dc5c50287e70ff84641d6a6b7f6336a3225d2ca897372b15e940151af
Copyright registration time
2026-06-07T20:50:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:8506f33738e30b73f18a89473c03ddd636e6603067ad2a879f9e764bad403759

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.