John Frog
type: MusicGroup
description: John Frog (born 1 January 1993) is a South Sudanese Afrobeat and Hip hop musician. He gained recognition for his hit song "Guondo Sakit," which became popular across East Africa. Early life John Fr
popularity: 3
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf91e0f21131a981b8e7c4247c2e4b8cd18fbc2d9f1c247e40fab6ecaeffc027
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a20dceb3-3a68-4f8d-9e84-eef7c256e13f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a20dceb3-3a68-4f8d-9e84-eef7c256e13f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a20dceb3-3a68-4f8d-9e84-eef7c256e13f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf91e0f21131a981b8e7c4247c2e4b8cd18fbc2d9f1c247e40fab6ecaeffc027","name":"John Frog","registered_at":"2026-06-20T05:52:26Z","symbol":"NIM1532159","token_address":"0x495c7427cd11dbcc8e49405cc3617cdcc03fe602","type":"artist","uuid":"a20dceb3-3a68-4f8d-9e84-eef7c256e13f"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf91e0f21131a981b8e7c4247c2e4b8cd18fbc2d9f1c247e40fab6ecaeffc027. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a20dceb3-3a68-4f8d-9e84-eef7c256e13f.json and https://artists.proofprofile.net/proofs/artist/a20dceb3-3a68-4f8d-9e84-eef7c256e13f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xbf91e0f21131a981b8e7c4247c2e4b8cd18fbc2d9f1c247e40fab6ecaeffc027","name":"John Frog","registered_at":"2026-06-20T05:52:26Z","symbol":"NIM1532159","token_address":"0x495c7427cd11dbcc8e49405cc3617cdcc03fe602","type":"artist","uuid":"a20dceb3-3a68-4f8d-9e84-eef7c256e13f"}