Jan Viethen
type: MusicGroup
popularity: 11
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd09f1dc29dff30d3ed39691704ddf1e8ef7ef953d6a1d794affb28c2b7d60212
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/f8c64dbf-77de-418a-b51b-505e18482ba5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8c64dbf-77de-418a-b51b-505e18482ba5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8c64dbf-77de-418a-b51b-505e18482ba5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd09f1dc29dff30d3ed39691704ddf1e8ef7ef953d6a1d794affb28c2b7d60212","name":"Jan Viethen","registered_at":"2026-06-15T06:38:05Z","symbol":"NIM0713053","token_address":"0x512fe26494a822526b5e40c0cd1a23fcd298d524","type":"artist","uuid":"f8c64dbf-77de-418a-b51b-505e18482ba5"}
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 0xd09f1dc29dff30d3ed39691704ddf1e8ef7ef953d6a1d794affb28c2b7d60212. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8c64dbf-77de-418a-b51b-505e18482ba5.json and https://artists.proofprofile.net/proofs/artist/f8c64dbf-77de-418a-b51b-505e18482ba5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
  text: {"copyright_id":"0xd09f1dc29dff30d3ed39691704ddf1e8ef7ef953d6a1d794affb28c2b7d60212","name":"Jan Viethen","registered_at":"2026-06-15T06:38:05Z","symbol":"NIM0713053","token_address":"0x512fe26494a822526b5e40c0cd1a23fcd298d524","type":"artist","uuid":"f8c64dbf-77de-418a-b51b-505e18482ba5"}