Ahmed Chawki (; born 31 December 1982),Medi1 TV: ضيف البرنامج أحمد شوقي known professionally by his stage name Chawki, is a Moroccan singer, songwriter and producer. Chawki began his career in the ea
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 0xbc7dc1db2b4b4c1b1ac643c333c0b38fe274998b532fae1647a703dc3ae93f5e. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef15b84d-4a8b-4645-9f8b-a109c84e07e7.json and https://artists.proofprofile.net/proofs/artist/ef15b84d-4a8b-4645-9f8b-a109c84e07e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).