Kameleon Vrienden
type: MusicGroup
genre: nederpop
popularity: 3
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc73ee3402eae232fc0d4f15001e85d31c8be63f686f7371c76991b226f47a7ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953842
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953842
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0087849d-65be-46a3-8c6b-5bc1d1b029f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0087849d-65be-46a3-8c6b-5bc1d1b029f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0087849d-65be-46a3-8c6b-5bc1d1b029f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:22:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc73ee3402eae232fc0d4f15001e85d31c8be63f686f7371c76991b226f47a7ad","name":"Kameleon Vrienden","registered_at":"2026-06-15T13:45:33Z","symbol":"NIM0726749","token_address":"0x43c838ae1d32d726165399b9a66374b4ec2ac69a","type":"artist","uuid":"0087849d-65be-46a3-8c6b-5bc1d1b029f4"}
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 0xc73ee3402eae232fc0d4f15001e85d31c8be63f686f7371c76991b226f47a7ad. Chain 2 (Bitcoin): anchored in block 953844 (2026-06-15T22:28:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0087849d-65be-46a3-8c6b-5bc1d1b029f4.json and https://artists.proofprofile.net/proofs/artist/0087849d-65be-46a3-8c6b-5bc1d1b029f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:28:08Z
  text: {"copyright_id":"0xc73ee3402eae232fc0d4f15001e85d31c8be63f686f7371c76991b226f47a7ad","name":"Kameleon Vrienden","registered_at":"2026-06-15T13:45:33Z","symbol":"NIM0726749","token_address":"0x43c838ae1d32d726165399b9a66374b4ec2ac69a","type":"artist","uuid":"0087849d-65be-46a3-8c6b-5bc1d1b029f4"}