Rita Kinka
type: MusicGroup
description: thumb|Rita Kinka Rita Kinka (born 1962, in Subotica), is a Serbian pianist of Hungarian descent. She graduated at the University of Novi Sad's Academy of Arts (where she is currently a professor) und
popularity: 6
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9975a61fe1a052d773cb61634410e556020293dbdc9daa3294ae9868e8698a22
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c502d55-eb5d-4c0d-95ed-26fcb97684d8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c502d55-eb5d-4c0d-95ed-26fcb97684d8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c502d55-eb5d-4c0d-95ed-26fcb97684d8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9975a61fe1a052d773cb61634410e556020293dbdc9daa3294ae9868e8698a22","name":"Rita Kinka","registered_at":"2026-06-16T10:35:56Z","symbol":"NIM1025230","token_address":"0x63d9e4aeba9463b1b99d0f421c94725e7ac4a84d","type":"artist","uuid":"3c502d55-eb5d-4c0d-95ed-26fcb97684d8"}
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 0x9975a61fe1a052d773cb61634410e556020293dbdc9daa3294ae9868e8698a22. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c502d55-eb5d-4c0d-95ed-26fcb97684d8.json and https://artists.proofprofile.net/proofs/artist/3c502d55-eb5d-4c0d-95ed-26fcb97684d8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x9975a61fe1a052d773cb61634410e556020293dbdc9daa3294ae9868e8698a22","name":"Rita Kinka","registered_at":"2026-06-16T10:35:56Z","symbol":"NIM1025230","token_address":"0x63d9e4aeba9463b1b99d0f421c94725e7ac4a84d","type":"artist","uuid":"3c502d55-eb5d-4c0d-95ed-26fcb97684d8"}