Katharina Zainzinger
type: MusicGroup
genre: indie pop
popularity: 2
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe906e356d1c5d761d80640a4613b5e53d59c616abbd0588c5ffbfcc40c5ceb48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ef3622e-3504-48aa-8edf-0a5c1a5df84f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ef3622e-3504-48aa-8edf-0a5c1a5df84f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ef3622e-3504-48aa-8edf-0a5c1a5df84f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe906e356d1c5d761d80640a4613b5e53d59c616abbd0588c5ffbfcc40c5ceb48","name":"Katharina Zainzinger","registered_at":"2026-06-16T00:20:35Z","symbol":"NIM0878283","token_address":"0x389d46b470687935d5a4992dec375ea79d52243f","type":"artist","uuid":"1ef3622e-3504-48aa-8edf-0a5c1a5df84f"}
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 0xe906e356d1c5d761d80640a4613b5e53d59c616abbd0588c5ffbfcc40c5ceb48. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ef3622e-3504-48aa-8edf-0a5c1a5df84f.json and https://artists.proofprofile.net/proofs/artist/1ef3622e-3504-48aa-8edf-0a5c1a5df84f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0xe906e356d1c5d761d80640a4613b5e53d59c616abbd0588c5ffbfcc40c5ceb48","name":"Katharina Zainzinger","registered_at":"2026-06-16T00:20:35Z","symbol":"NIM0878283","token_address":"0x389d46b470687935d5a4992dec375ea79d52243f","type":"artist","uuid":"1ef3622e-3504-48aa-8edf-0a5c1a5df84f"}
album: Brodtischgossn
  type: MusicAlbum
  date published: 2025-03-27
album: Zwida
  type: MusicAlbum
  date published: 2025-04-24
album: Jessasna
  type: MusicAlbum
  date published: 2025-07-25