Jochem Van Tol
type: MusicGroup
popularity: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b18e4bbfef045e8519b48b913606f527f4c18edf20fd0cb1dd87001a8caa4fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953768
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953768
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3ecee8c-f285-40df-9a6d-b42d3b8ff756.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3ecee8c-f285-40df-9a6d-b42d3b8ff756.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3ecee8c-f285-40df-9a6d-b42d3b8ff756
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:30:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3b18e4bbfef045e8519b48b913606f527f4c18edf20fd0cb1dd87001a8caa4fb","name":"Jochem Van Tol","registered_at":"2026-06-15T01:02:35Z","symbol":"NIM0632937","token_address":"0xb7eb980d226288b4637f8b66ee70840d4434e31f","type":"artist","uuid":"c3ecee8c-f285-40df-9a6d-b42d3b8ff756"}
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 0x3b18e4bbfef045e8519b48b913606f527f4c18edf20fd0cb1dd87001a8caa4fb. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3ecee8c-f285-40df-9a6d-b42d3b8ff756.json and https://artists.proofprofile.net/proofs/artist/c3ecee8c-f285-40df-9a6d-b42d3b8ff756.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T09:30:06Z
  text: {"copyright_id":"0x3b18e4bbfef045e8519b48b913606f527f4c18edf20fd0cb1dd87001a8caa4fb","name":"Jochem Van Tol","registered_at":"2026-06-15T01:02:35Z","symbol":"NIM0632937","token_address":"0xb7eb980d226288b4637f8b66ee70840d4434e31f","type":"artist","uuid":"c3ecee8c-f285-40df-9a6d-b42d3b8ff756"}
album: Pacifica (Original Motion Picture Score)
  type: MusicAlbum
  date published: 2025-05-23