ISRC QZFZ42322291
Verified recording
QZFZ42322291 is “Nasza Twierdza” by Cira,
registered on the CopyrightChains blockchain with CopyrightID
0xd7e33a74e39f74bdc130894ec2f86d315237e39072f17ca53d241c346204923a and independently timestamped
in Bitcoin block 960236 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42322291.
Recording identifiers
- ISRC
- QZFZ42322291
- Title
- Nasza Twierdza
- Artist
- Cira
- CopyrightID (CopyrightChains transaction hash)
0xd7e33a74e39f74bdc130894ec2f86d315237e39072f17ca53d241c346204923a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T09:37:10+00:00
- Bitcoin block
- 960236
- Canonical record hash
sha256:a995c372e3225b1e0e9ec2c32668244292336eaebc14a2abdeb60279d433065c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42322291
- Bitcoin block existence check
- https://blockstream.info/api/block/960236