ISRC QZHN72130999
Verified recording
QZHN72130999 is “Cook Up” by John Mackk,
registered on the CopyrightChains blockchain with CopyrightID
0x7577982e938f0ee87355de110641385583e8cead9099fb86d48206f9b928e531 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72130999.
Recording identifiers
- ISRC
- QZHN72130999
- Title
- Cook Up
- Artist
- John Mackk
- CopyrightID (CopyrightChains transaction hash)
0x7577982e938f0ee87355de110641385583e8cead9099fb86d48206f9b928e531
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:de2304174ff6a4e6cd35b1a6b09bb499c20dda3b613f14c00d6ea6fb1b165bd4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72130999
- Bitcoin block existence check
- https://blockstream.info/api/block/956304