De Fanfaar
type: MusicGroup
popularity: 5
followers: 458
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcff7af9f67a50c6b0534600c47d25ab61845dfea201e9b649e1412937055ce27
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/167f3dd7-b28a-406e-aa15-3136dd6f7cda.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/167f3dd7-b28a-406e-aa15-3136dd6f7cda.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/167f3dd7-b28a-406e-aa15-3136dd6f7cda
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcff7af9f67a50c6b0534600c47d25ab61845dfea201e9b649e1412937055ce27","name":"De Fanfaar","registered_at":"2026-06-15T21:27:12Z","symbol":"NIM0836901","token_address":"0xabe07fc255933bc86929bf29d6a8bf703226b99c","type":"artist","uuid":"167f3dd7-b28a-406e-aa15-3136dd6f7cda"}
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 0xcff7af9f67a50c6b0534600c47d25ab61845dfea201e9b649e1412937055ce27. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/167f3dd7-b28a-406e-aa15-3136dd6f7cda.json and https://artists.proofprofile.net/proofs/artist/167f3dd7-b28a-406e-aa15-3136dd6f7cda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xcff7af9f67a50c6b0534600c47d25ab61845dfea201e9b649e1412937055ce27","name":"De Fanfaar","registered_at":"2026-06-15T21:27:12Z","symbol":"NIM0836901","token_address":"0xabe07fc255933bc86929bf29d6a8bf703226b99c","type":"artist","uuid":"167f3dd7-b28a-406e-aa15-3136dd6f7cda"}
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