Markus Opheim
type: MusicGroup
popularity: 3
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ca4df9f6b6bfc01bf3e2aebf931c8d30f2cd9bdb45c62b588389ee373b5acf4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dee245e-0867-4be4-a3c4-ee83a8d407a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dee245e-0867-4be4-a3c4-ee83a8d407a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dee245e-0867-4be4-a3c4-ee83a8d407a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8ca4df9f6b6bfc01bf3e2aebf931c8d30f2cd9bdb45c62b588389ee373b5acf4","name":"Markus Opheim","registered_at":"2026-06-17T09:33:49Z","symbol":"NIM1353939","token_address":"0x3e6b58e859b4f19b7fa948533cc8bbfa6c2b682f","type":"artist","uuid":"7dee245e-0867-4be4-a3c4-ee83a8d407a7"}
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 0x8ca4df9f6b6bfc01bf3e2aebf931c8d30f2cd9bdb45c62b588389ee373b5acf4. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dee245e-0867-4be4-a3c4-ee83a8d407a7.json and https://artists.proofprofile.net/proofs/artist/7dee245e-0867-4be4-a3c4-ee83a8d407a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x8ca4df9f6b6bfc01bf3e2aebf931c8d30f2cd9bdb45c62b588389ee373b5acf4","name":"Markus Opheim","registered_at":"2026-06-17T09:33:49Z","symbol":"NIM1353939","token_address":"0x3e6b58e859b4f19b7fa948533cc8bbfa6c2b682f","type":"artist","uuid":"7dee245e-0867-4be4-a3c4-ee83a8d407a7"}