ISRC QZFZ32187776
Verified recording
QZFZ32187776 is “Nonexistence” by Carlos Ferreira,
registered on the CopyrightChains blockchain with CopyrightID
0x30c93e7271d8a8eb35c9b6f6daabaf8b54fcf9a0fde05593101b3fbf12264552 and independently timestamped
in Bitcoin block 960494 on 2026-08-01.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32187776.
Recording identifiers
- ISRC
- QZFZ32187776
- Title
- Nonexistence
- Artist
- Carlos Ferreira
- CopyrightID (CopyrightChains transaction hash)
0x30c93e7271d8a8eb35c9b6f6daabaf8b54fcf9a0fde05593101b3fbf12264552
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-08-01T01:44:32+00:00
- Bitcoin block
- 960494
- Canonical record hash
sha256:5db6def8d81496c91aca178f8adf7f5c2dd359b957a05ae3ded98237d5623ade- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32187776
- Bitcoin block existence check
- https://blockstream.info/api/block/960494