Sanja Vučić
type: MusicGroup
description: Sanja Vučić (, ; born 8 August 1993) is a Serbian singer and songwriter. She began her career as the lead vocalist of the Serbian crossover band ZAA. In 2016, Vučić was selected to represent Serbia at
popularity: 27
followers: 176
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x559a70d69518b1f2a0cfa48cf3e1fa16ed4c41da95393c78926e77e12e3a902d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98b3fd9c-11ae-40d7-94f8-b887ea419af8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98b3fd9c-11ae-40d7-94f8-b887ea419af8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98b3fd9c-11ae-40d7-94f8-b887ea419af8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x559a70d69518b1f2a0cfa48cf3e1fa16ed4c41da95393c78926e77e12e3a902d","name":"Sanja Vučić","registered_at":"2026-06-12T05:15:08Z","symbol":"NIM0197607","token_address":"0x34beef7e506f8afa2fd80950cf2bf7aa60e8118f","type":"artist","uuid":"98b3fd9c-11ae-40d7-94f8-b887ea419af8"}
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 0x559a70d69518b1f2a0cfa48cf3e1fa16ed4c41da95393c78926e77e12e3a902d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98b3fd9c-11ae-40d7-94f8-b887ea419af8.json and https://artists.proofprofile.net/proofs/artist/98b3fd9c-11ae-40d7-94f8-b887ea419af8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x559a70d69518b1f2a0cfa48cf3e1fa16ed4c41da95393c78926e77e12e3a902d","name":"Sanja Vučić","registered_at":"2026-06-12T05:15:08Z","symbol":"NIM0197607","token_address":"0x34beef7e506f8afa2fd80950cf2bf7aa60e8118f","type":"artist","uuid":"98b3fd9c-11ae-40d7-94f8-b887ea419af8"}