Tonny Huurdeman
type: MusicGroup
popularity: 3
followers: 29
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64f31985e94ff0f374a1862ff91dbae55aae34dd60519df3a4c1eb727f6e4a8e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64f31985e94ff0f374a1862ff91dbae55aae34dd60519df3a4c1eb727f6e4a8e","name":"Tonny Huurdeman","registered_at":"2026-06-17T08:53:20Z","symbol":"NIM1344280","token_address":"0x4863af2a70980fd8eea4e6dd5d5cfbc0909075a1","type":"artist","uuid":"7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492"}
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 0x64f31985e94ff0f374a1862ff91dbae55aae34dd60519df3a4c1eb727f6e4a8e. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492.json and https://artists.proofprofile.net/proofs/artist/7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x64f31985e94ff0f374a1862ff91dbae55aae34dd60519df3a4c1eb727f6e4a8e","name":"Tonny Huurdeman","registered_at":"2026-06-17T08:53:20Z","symbol":"NIM1344280","token_address":"0x4863af2a70980fd8eea4e6dd5d5cfbc0909075a1","type":"artist","uuid":"7c12e6f4-abc1-417b-9fc7-9d2dbfc2b492"}