Martin van Dijk
type: MusicGroup
genre: nederpop
popularity: 12
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d14a5a18b0f6de2f84b37c516755c23c57e74214d0712de4f59df22dfd020e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc2258e6-9469-43f5-ac08-dd9de6e51024.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc2258e6-9469-43f5-ac08-dd9de6e51024.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc2258e6-9469-43f5-ac08-dd9de6e51024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d14a5a18b0f6de2f84b37c516755c23c57e74214d0712de4f59df22dfd020e8","name":"Martin van Dijk","registered_at":"2026-06-15T06:58:39Z","symbol":"NIM0717958","token_address":"0x4eb9b85766699aa1ad71fdb7d12c0c2669eaa1d6","type":"artist","uuid":"fc2258e6-9469-43f5-ac08-dd9de6e51024"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d14a5a18b0f6de2f84b37c516755c23c57e74214d0712de4f59df22dfd020e8. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc2258e6-9469-43f5-ac08-dd9de6e51024.json and https://artists.proofprofile.net/proofs/artist/fc2258e6-9469-43f5-ac08-dd9de6e51024.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x5d14a5a18b0f6de2f84b37c516755c23c57e74214d0712de4f59df22dfd020e8","name":"Martin van Dijk","registered_at":"2026-06-15T06:58:39Z","symbol":"NIM0717958","token_address":"0x4eb9b85766699aa1ad71fdb7d12c0c2669eaa1d6","type":"artist","uuid":"fc2258e6-9469-43f5-ac08-dd9de6e51024"}