Nikos Kallinis
type: MusicGroup
genre: entehno
popularity: 3
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5d6ce2954706c2c1415d45155e113279509c2b0a17609b113d79c9d5790acd2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fdca679-2023-4083-9c7e-17db3556ab89.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fdca679-2023-4083-9c7e-17db3556ab89.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7fdca679-2023-4083-9c7e-17db3556ab89
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5d6ce2954706c2c1415d45155e113279509c2b0a17609b113d79c9d5790acd2","name":"Nikos Kallinis","registered_at":"2026-06-17T10:10:46Z","symbol":"NIM1362755","token_address":"0x54dbbdc53106b4d5c5680b656507f9c9562e531d","type":"artist","uuid":"7fdca679-2023-4083-9c7e-17db3556ab89"}
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 0xc5d6ce2954706c2c1415d45155e113279509c2b0a17609b113d79c9d5790acd2. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fdca679-2023-4083-9c7e-17db3556ab89.json and https://artists.proofprofile.net/proofs/artist/7fdca679-2023-4083-9c7e-17db3556ab89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:12:18Z
  text: {"copyright_id":"0xc5d6ce2954706c2c1415d45155e113279509c2b0a17609b113d79c9d5790acd2","name":"Nikos Kallinis","registered_at":"2026-06-17T10:10:46Z","symbol":"NIM1362755","token_address":"0x54dbbdc53106b4d5c5680b656507f9c9562e531d","type":"artist","uuid":"7fdca679-2023-4083-9c7e-17db3556ab89"}