Susan Roberts
type: MusicGroup
genre: opera
description: 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
popularity: 4
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85c77306bd38698146482973b6c60ae1a458d95581ad4c84f5015af9d2600071
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6de80bfa-b0a7-4533-97c5-34a173590ba3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6de80bfa-b0a7-4533-97c5-34a173590ba3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6de80bfa-b0a7-4533-97c5-34a173590ba3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85c77306bd38698146482973b6c60ae1a458d95581ad4c84f5015af9d2600071","name":"Susan Roberts","registered_at":"2026-06-17T03:59:59Z","symbol":"NIM1274338","token_address":"0x0dc9764854028a8bb0b82af4554f6ac0b4ad01b1","type":"artist","uuid":"6de80bfa-b0a7-4533-97c5-34a173590ba3"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x85c77306bd38698146482973b6c60ae1a458d95581ad4c84f5015af9d2600071","name":"Susan Roberts","registered_at":"2026-06-17T03:59:59Z","symbol":"NIM1274338","token_address":"0x0dc9764854028a8bb0b82af4554f6ac0b4ad01b1","type":"artist","uuid":"6de80bfa-b0a7-4533-97c5-34a173590ba3"}