Die Lofkleuters
type: MusicGroup
genre: children's music
popularity: 27
followers: 342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x435f9f0b62121f12ccda8e8df2ada7fdc7d868a330ba0c4726292a3df2598c79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7991cde-924b-498e-b3b4-6f6cbd8959ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7991cde-924b-498e-b3b4-6f6cbd8959ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7991cde-924b-498e-b3b4-6f6cbd8959ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x435f9f0b62121f12ccda8e8df2ada7fdc7d868a330ba0c4726292a3df2598c79","name":"Die Lofkleuters","registered_at":"2026-06-12T08:02:52Z","symbol":"NIM0236278","token_address":"0x621eab10935b7cbbe7dd610a0f66d8265fda1029","type":"artist","uuid":"b7991cde-924b-498e-b3b4-6f6cbd8959ab"}
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 0x435f9f0b62121f12ccda8e8df2ada7fdc7d868a330ba0c4726292a3df2598c79. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7991cde-924b-498e-b3b4-6f6cbd8959ab.json and https://artists.proofprofile.net/proofs/artist/b7991cde-924b-498e-b3b4-6f6cbd8959ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x435f9f0b62121f12ccda8e8df2ada7fdc7d868a330ba0c4726292a3df2598c79","name":"Die Lofkleuters","registered_at":"2026-06-12T08:02:52Z","symbol":"NIM0236278","token_address":"0x621eab10935b7cbbe7dd610a0f66d8265fda1029","type":"artist","uuid":"b7991cde-924b-498e-b3b4-6f6cbd8959ab"}