Dick Todd may refer to: Dick Todd (American football) (1914–1999), NFL player and coach Dick Todd (ice hockey), former junior hockey coach Dick Todd (singer) (1914–1973), Canadian singer See also Ri
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 0x2b9d2b9d1cb1a69df481ac50f2e4a9f615e287ccb8d2d4498b85371f1318d241. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/987a6dbe-294f-40fc-af97-224ad20e7445.json and https://artists.proofprofile.net/proofs/artist/987a6dbe-294f-40fc-af97-224ad20e7445.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).