Cak Ndu
type: MusicGroup
genre: dangdut
popularity: 6
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc508e4837c464251e410d2e4909f65dce2529dae19a5e61aae9c4ede72d89b82
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a586c8f-5445-4cc3-b176-ef5736005049.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a586c8f-5445-4cc3-b176-ef5736005049.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a586c8f-5445-4cc3-b176-ef5736005049
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc508e4837c464251e410d2e4909f65dce2529dae19a5e61aae9c4ede72d89b82","name":"Cak Ndu","registered_at":"2026-06-15T22:46:23Z","symbol":"NIM0855789","token_address":"0xb90b7cda2a648ce911c54065ad13d6a2b2ef2dd1","type":"artist","uuid":"1a586c8f-5445-4cc3-b176-ef5736005049"}
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 0xc508e4837c464251e410d2e4909f65dce2529dae19a5e61aae9c4ede72d89b82. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a586c8f-5445-4cc3-b176-ef5736005049.json and https://artists.proofprofile.net/proofs/artist/1a586c8f-5445-4cc3-b176-ef5736005049.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xc508e4837c464251e410d2e4909f65dce2529dae19a5e61aae9c4ede72d89b82","name":"Cak Ndu","registered_at":"2026-06-15T22:46:23Z","symbol":"NIM0855789","token_address":"0xb90b7cda2a648ce911c54065ad13d6a2b2ef2dd1","type":"artist","uuid":"1a586c8f-5445-4cc3-b176-ef5736005049"}
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