Geoff Cartwright
type: MusicGroup
description: Geoff Cartwright is an actor, director, award-winning audio book reader, poet, author and high school teacher. Career Cartwright is notable for his recurring role as Dr. Rob Bowen in the Australian d
popularity: 3
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6201d81b7f39d349e61455689d5013ea0cf7bbbe244a581662aad15ec564ed04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d36831c-0f21-4df3-8a35-9beb5f6b71aa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d36831c-0f21-4df3-8a35-9beb5f6b71aa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5d36831c-0f21-4df3-8a35-9beb5f6b71aa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6201d81b7f39d349e61455689d5013ea0cf7bbbe244a581662aad15ec564ed04","name":"Geoff Cartwright","registered_at":"2026-06-16T22:25:14Z","symbol":"NIM1194463","token_address":"0x449bb2ece677a5946a3d342b253138b0d7aa2c20","type":"artist","uuid":"5d36831c-0f21-4df3-8a35-9beb5f6b71aa"}
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 0x6201d81b7f39d349e61455689d5013ea0cf7bbbe244a581662aad15ec564ed04. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d36831c-0f21-4df3-8a35-9beb5f6b71aa.json and https://artists.proofprofile.net/proofs/artist/5d36831c-0f21-4df3-8a35-9beb5f6b71aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x6201d81b7f39d349e61455689d5013ea0cf7bbbe244a581662aad15ec564ed04","name":"Geoff Cartwright","registered_at":"2026-06-16T22:25:14Z","symbol":"NIM1194463","token_address":"0x449bb2ece677a5946a3d342b253138b0d7aa2c20","type":"artist","uuid":"5d36831c-0f21-4df3-8a35-9beb5f6b71aa"}