Susan Roberts (born 21 April 1939) is a South African former swimmer who competed in the 1956 Summer Olympics. References Category:1939 births Category:Living people Category:Swimmers from Johannesb
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 0x85c77306bd38698146482973b6c60ae1a458d95581ad4c84f5015af9d2600071. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6de80bfa-b0a7-4533-97c5-34a173590ba3.json and https://artists.proofprofile.net/proofs/artist/6de80bfa-b0a7-4533-97c5-34a173590ba3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).