Oleg Kai
type: MusicGroup
popularity: 5
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd218e63b7a341ba0c9bd12fa49b72f9257743cd71fc5e8946e1947c088c70d30
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56b2e9e9-7286-4fe7-bca7-d56abcdb704d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56b2e9e9-7286-4fe7-bca7-d56abcdb704d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56b2e9e9-7286-4fe7-bca7-d56abcdb704d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd218e63b7a341ba0c9bd12fa49b72f9257743cd71fc5e8946e1947c088c70d30","name":"Oleg Kai","registered_at":"2026-06-16T19:54:27Z","symbol":"NIM1158479","token_address":"0xc6a82607aa040a5d9be7d222d1f722a5122d9b77","type":"artist","uuid":"56b2e9e9-7286-4fe7-bca7-d56abcdb704d"}
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 0xd218e63b7a341ba0c9bd12fa49b72f9257743cd71fc5e8946e1947c088c70d30. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56b2e9e9-7286-4fe7-bca7-d56abcdb704d.json and https://artists.proofprofile.net/proofs/artist/56b2e9e9-7286-4fe7-bca7-d56abcdb704d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xd218e63b7a341ba0c9bd12fa49b72f9257743cd71fc5e8946e1947c088c70d30","name":"Oleg Kai","registered_at":"2026-06-16T19:54:27Z","symbol":"NIM1158479","token_address":"0xc6a82607aa040a5d9be7d222d1f722a5122d9b77","type":"artist","uuid":"56b2e9e9-7286-4fe7-bca7-d56abcdb704d"}
album: Милая
  type: MusicAlbum
  date published: 2020-03-14
album: Отдых
  type: MusicAlbum
  date published: 2020-05-15
album: Цветы
  type: MusicAlbum
  date published: 2021-04-30
album: Между нами
  type: MusicAlbum
  date published: 2021-10-13
album: САМАЯ
  type: MusicAlbum
  date published: 2025-02-28