David (; , "beloved one") was, originally, leader of the Tribe of Judah who became the first king of the united Kingdom of Israel according to the Hebrew Bible and Old Testament. David's reign may ha
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 0x7bea27af1d6806ba17447397fc7bb215bdf126ba2344b8f5344d03faa0fc433a. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11ecc62a-90a5-448e-9108-b58ca5da4a74.json and https://artists.proofprofile.net/proofs/artist/11ecc62a-90a5-448e-9108-b58ca5da4a74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).