Anb () is a Syrian village located in Muhambal Nahiyah in Ariha District, Idlib. According to the Syria Central Bureau of Statistics, Anb had a population of 1064 in the 2004 census. References C
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1aeed4bb173b7279263f93fed5aa38db4f8895c7efac6ec91b9d39a0816c4c9. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4b85bf5-9042-4a5d-b948-6914dfdc94d7.json and https://artists.proofprofile.net/proofs/artist/d4b85bf5-9042-4a5d-b948-6914dfdc94d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).