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 0x2c12959a72d2784f80dd6871e0f4053f11a7778f6e84ef9e2a6af690632a619b. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f6947a2-c2dd-40b2-a86a-6e0d8e0f99e6.json and https://artists.proofprofile.net/proofs/artist/9f6947a2-c2dd-40b2-a86a-6e0d8e0f99e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amjad_Jomaa_-_Reef_Al_Ain X Al_Shami_-_Wein
akhras - Ghaleban (Official Remix) الاخرس - غالباً
احمد ستار - ناري 2025 (Ahmed Sattar - Nari) Offical RMX
Bessan & Samara & Oudai (Harbein x Galbi x Khayal)