ISRC QZTAT2172264
Verified recording
QZTAT2172264 is “Caroline” by John Mackk,
registered on the CopyrightChains blockchain with CopyrightID
0x831b6d61b106fcafe7a6684e647127ee27b4c40b9efac9109e6ef8ea2705c651 and independently timestamped
in Bitcoin block 957025 on 2026-07-07.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2172264.
Recording identifiers
- ISRC
- QZTAT2172264
- Title
- Caroline
- Artist
- John Mackk
- CopyrightID (CopyrightChains transaction hash)
0x831b6d61b106fcafe7a6684e647127ee27b4c40b9efac9109e6ef8ea2705c651
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-07T10:59:31+00:00
- Bitcoin block
- 957025
- Canonical record hash
sha256:2273b245435021138bbb350d056e55dcbbc690b3b7020cb4df18c907727365cb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2172264
- Bitcoin block existence check
- https://blockstream.info/api/block/957025