Valeri Popova
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f6c8a5134c073c69d03314d54c13b7c6553347091d6876ed9524d236d123e33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0831fd4d-0b99-45ea-843c-e904e97ece49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0831fd4d-0b99-45ea-843c-e904e97ece49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0831fd4d-0b99-45ea-843c-e904e97ece49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0f6c8a5134c073c69d03314d54c13b7c6553347091d6876ed9524d236d123e33","name":"Valeri Popova","registered_at":"2026-06-15T16:27:23Z","symbol":"NIM0765386","token_address":"0x6bea9b1ff00b1d942c55509edbe33e6df932faf8","type":"artist","uuid":"0831fd4d-0b99-45ea-843c-e904e97ece49"}
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 0x0f6c8a5134c073c69d03314d54c13b7c6553347091d6876ed9524d236d123e33. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0831fd4d-0b99-45ea-843c-e904e97ece49.json and https://artists.proofprofile.net/proofs/artist/0831fd4d-0b99-45ea-843c-e904e97ece49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x0f6c8a5134c073c69d03314d54c13b7c6553347091d6876ed9524d236d123e33","name":"Valeri Popova","registered_at":"2026-06-15T16:27:23Z","symbol":"NIM0765386","token_address":"0x6bea9b1ff00b1d942c55509edbe33e6df932faf8","type":"artist","uuid":"0831fd4d-0b99-45ea-843c-e904e97ece49"}
album: Valeri Popova: Opera Recital
  type: MusicAlbum
  date published: 1986-05-12