Stefan Baumann
type: MusicGroup
popularity: 6
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa86ff8c67428c6b72087b6661665f4ced101785396cd690cb1c22b10d0c89d75
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/7e42ed7a-235c-44b3-b756-fedd9261fac8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e42ed7a-235c-44b3-b756-fedd9261fac8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e42ed7a-235c-44b3-b756-fedd9261fac8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa86ff8c67428c6b72087b6661665f4ced101785396cd690cb1c22b10d0c89d75","name":"Stefan Baumann","registered_at":"2026-06-17T09:40:15Z","symbol":"NIM1355476","token_address":"0x019e1a7ffba08ade4d5c302ccd4cfd20aa215a1b","type":"artist","uuid":"7e42ed7a-235c-44b3-b756-fedd9261fac8"}
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 0xa86ff8c67428c6b72087b6661665f4ced101785396cd690cb1c22b10d0c89d75. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e42ed7a-235c-44b3-b756-fedd9261fac8.json and https://artists.proofprofile.net/proofs/artist/7e42ed7a-235c-44b3-b756-fedd9261fac8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0xa86ff8c67428c6b72087b6661665f4ced101785396cd690cb1c22b10d0c89d75","name":"Stefan Baumann","registered_at":"2026-06-17T09:40:15Z","symbol":"NIM1355476","token_address":"0x019e1a7ffba08ade4d5c302ccd4cfd20aa215a1b","type":"artist","uuid":"7e42ed7a-235c-44b3-b756-fedd9261fac8"}