1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b33737bc799dd02576f09004f084c7627a522677e27513f2e63a5b90b15649. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/935d35aa-4e98-4107-a44f-321b95bb607d.json and https://artists.proofprofile.net/proofs/artist/935d35aa-4e98-4107-a44f-321b95bb607d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sourates Al Buruj, Al Balad, Ach Chams, Al Layl, Al Adiyate (Quran)
Sourates An Nasr, Al Masad, Al Ikhlas, Al Falaq, An Nas (Quran)
Sourates Al Fil, Qoraich, Al Maun, Al Kawtar, Al Kafirune (Quran)
Sourates Arrahmane, Al Mulk, Nuh, Al Qiyamah, Al Infitar (Quran)