Stefan Hussong
type: MusicGroup
genre: avant-garde
genre: japanese classical
genre: tango
genre: traditional music
description: thumb|Stefan Hussong, 2022 Stefan Hussong (born 2 November 1962) is a German classical accordionist. He has received numerous awards for his performances, including the Gaudeamus International Compet
popularity: 5
followers: 489
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x050f7ec3b93e7156f83dbf9ca65273eaf0c477bf9394de97fc46cd30ef4f874d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22950cb2-0ca2-46e1-8ea6-ac0f935dd479.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/22950cb2-0ca2-46e1-8ea6-ac0f935dd479.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/22950cb2-0ca2-46e1-8ea6-ac0f935dd479
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x050f7ec3b93e7156f83dbf9ca65273eaf0c477bf9394de97fc46cd30ef4f874d","name":"Stefan Hussong","registered_at":"2026-06-16T01:41:44Z","symbol":"NIM0897665","token_address":"0xe6092ce94201d57ba0d166df02f36a51e526de57","type":"artist","uuid":"22950cb2-0ca2-46e1-8ea6-ac0f935dd479"}
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 0x050f7ec3b93e7156f83dbf9ca65273eaf0c477bf9394de97fc46cd30ef4f874d. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22950cb2-0ca2-46e1-8ea6-ac0f935dd479.json and https://artists.proofprofile.net/proofs/artist/22950cb2-0ca2-46e1-8ea6-ac0f935dd479.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x050f7ec3b93e7156f83dbf9ca65273eaf0c477bf9394de97fc46cd30ef4f874d","name":"Stefan Hussong","registered_at":"2026-06-16T01:41:44Z","symbol":"NIM0897665","token_address":"0xe6092ce94201d57ba0d166df02f36a51e526de57","type":"artist","uuid":"22950cb2-0ca2-46e1-8ea6-ac0f935dd479"}
album: Cage/Frescobaldi: Anarchic Harmonies
  type: MusicAlbum
  date published: 2002