Al Saeed () is a sub-district located in As Sawma'ah District, Al Bayda Governorate, Yemen. Al Saeed had a population of 3883 according to the 2004 census.Al-Bayda, census final results 2004 Referen
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 0x9749a9c04a540192edc88d61234475b925799e60c8692485b64fee71d738a357. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06c0365c-f18d-41cf-b39a-216caacc57f1.json and https://artists.proofprofile.net/proofs/artist/06c0365c-f18d-41cf-b39a-216caacc57f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).