Ragg is a surname. Notable people with the surname include: Amie Ragg (1878–1957), Fijian engineer, civil servant and politician David Ragg (1919–2002), Canadian Anglican bishop Edward Ragg (born 197
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 0xbd7fc8d093d8a2b5444793a333f4a4540c07b881817eba0fd25ac5287fd97303. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1242c65a-dee4-4231-ba2e-de9bd53defbd.json and https://artists.proofprofile.net/proofs/artist/1242c65a-dee4-4231-ba2e-de9bd53defbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).