Helmut Müller-Lankow
type: MusicGroup
genre: children's music
popularity: 17
followers: 168
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfff90675fba03492e3071db6a51b80c6fc21a327c676655d17f949255ee40757
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953743
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953743
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2c89a4a-11ed-40af-bf49-7674abbe14c2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2c89a4a-11ed-40af-bf49-7674abbe14c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2c89a4a-11ed-40af-bf49-7674abbe14c2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:52:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfff90675fba03492e3071db6a51b80c6fc21a327c676655d17f949255ee40757","name":"Helmut Müller-Lankow","registered_at":"2026-06-14T21:37:36Z","symbol":"NIM0583990","token_address":"0xbff75b5506d95b88b0af7e514015f9e683216245","type":"artist","uuid":"a2c89a4a-11ed-40af-bf49-7674abbe14c2"}
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 0xfff90675fba03492e3071db6a51b80c6fc21a327c676655d17f949255ee40757. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2c89a4a-11ed-40af-bf49-7674abbe14c2.json and https://artists.proofprofile.net/proofs/artist/a2c89a4a-11ed-40af-bf49-7674abbe14c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:52:01Z
  text: {"copyright_id":"0xfff90675fba03492e3071db6a51b80c6fc21a327c676655d17f949255ee40757","name":"Helmut Müller-Lankow","registered_at":"2026-06-14T21:37:36Z","symbol":"NIM0583990","token_address":"0xbff75b5506d95b88b0af7e514015f9e683216245","type":"artist","uuid":"a2c89a4a-11ed-40af-bf49-7674abbe14c2"}