David, Dafydd, Dai, Dave, Davy, or Di Jones may refer to: People Arts and entertainment Music David Bowie (David Robert Jones, 1947–2016), English musician and actor Dave Jones (drummer) (active si
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 0x01a0ea04394a5a4504c75812300aa9966e81e468419760eb497503e9b21b6d8e. 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/ee8f4a7f-77c0-4ffd-b3b6-b4b19ea4323e.json and https://artists.proofprofile.net/proofs/artist/ee8f4a7f-77c0-4ffd-b3b6-b4b19ea4323e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).