ISRC QZQAY2294694
Verified recording
QZQAY2294694 is “Dois De Fevereiro” by Dorival Caymmi,
registered on the CopyrightChains blockchain with CopyrightID
0x2bcd4507e70cfc5f1f7a5ec9b7cd543aba0dc4a920b7f0c71fd56532b115b750 and independently timestamped
in Bitcoin block 960191 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2294694.
Recording identifiers
- ISRC
- QZQAY2294694
- Title
- Dois De Fevereiro
- Artist
- Dorival Caymmi
- CopyrightID (CopyrightChains transaction hash)
0x2bcd4507e70cfc5f1f7a5ec9b7cd543aba0dc4a920b7f0c71fd56532b115b750
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T01:51:26+00:00
- Bitcoin block
- 960191
- Canonical record hash
sha256:ba3795bf7f5fb10d5956a7341a3b4444d7a62b2e09bf9780d7c6e5cbab106f2f- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2294694
- Bitcoin block existence check
- https://blockstream.info/api/block/960191