Yohannes Tonna
type: MusicGroup
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33e4bcfb54328e4bd8ccce21abb9a2669347f7bacdb3b90b45de443cca919c34
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03a083c9-075d-4582-808b-863a039b9928.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03a083c9-075d-4582-808b-863a039b9928.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03a083c9-075d-4582-808b-863a039b9928
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x33e4bcfb54328e4bd8ccce21abb9a2669347f7bacdb3b90b45de443cca919c34","name":"Yohannes Tonna","registered_at":"2026-06-15T14:53:47Z","symbol":"NIM0743034","token_address":"0xbd81bf20901f36de25137e4c5a27e9a63963b00d","type":"artist","uuid":"03a083c9-075d-4582-808b-863a039b9928"}
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 0x33e4bcfb54328e4bd8ccce21abb9a2669347f7bacdb3b90b45de443cca919c34. 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/03a083c9-075d-4582-808b-863a039b9928.json and https://artists.proofprofile.net/proofs/artist/03a083c9-075d-4582-808b-863a039b9928.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x33e4bcfb54328e4bd8ccce21abb9a2669347f7bacdb3b90b45de443cca919c34","name":"Yohannes Tonna","registered_at":"2026-06-15T14:53:47Z","symbol":"NIM0743034","token_address":"0xbd81bf20901f36de25137e4c5a27e9a63963b00d","type":"artist","uuid":"03a083c9-075d-4582-808b-863a039b9928"}