Полина Королева
type: MusicGroup
popularity: 17
followers: 164
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf837008bc5d5c84b603d5a1657e01927fba3cb07a5935894ca8b5ae47190a59d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953710
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953710
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7eb16064-337e-4ba9-9e24-6ff734066173.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7eb16064-337e-4ba9-9e24-6ff734066173.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7eb16064-337e-4ba9-9e24-6ff734066173
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:32:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf837008bc5d5c84b603d5a1657e01927fba3cb07a5935894ca8b5ae47190a59d","name":"Полина Королева","registered_at":"2026-06-14T17:48:42Z","symbol":"NIM0529439","token_address":"0xbdc6124db0f03dd8d306f95998e82ddde2f2ff19","type":"artist","uuid":"7eb16064-337e-4ba9-9e24-6ff734066173"}
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 0xf837008bc5d5c84b603d5a1657e01927fba3cb07a5935894ca8b5ae47190a59d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7eb16064-337e-4ba9-9e24-6ff734066173.json and https://artists.proofprofile.net/proofs/artist/7eb16064-337e-4ba9-9e24-6ff734066173.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xf837008bc5d5c84b603d5a1657e01927fba3cb07a5935894ca8b5ae47190a59d","name":"Полина Королева","registered_at":"2026-06-14T17:48:42Z","symbol":"NIM0529439","token_address":"0xbdc6124db0f03dd8d306f95998e82ddde2f2ff19","type":"artist","uuid":"7eb16064-337e-4ba9-9e24-6ff734066173"}
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