Alexander Sitkovetsky
type: MusicGroup
genre: tango
description: thumb|Sitkovetsky Trio in 2023, Alexander on the left Alexander Sitkovetsky (born 1983) is a British violinist. Biography Family Sitkovetsky was born in Moscow to a musical family; his father being
popularity: 29
followers: 372
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7a2a9853ce92e58a7fd57b7653fd5cef5a7947b3b552c895d6174c48310048f
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/dec432d9-3a27-491e-968c-c6f12755f9c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dec432d9-3a27-491e-968c-c6f12755f9c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dec432d9-3a27-491e-968c-c6f12755f9c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7a2a9853ce92e58a7fd57b7653fd5cef5a7947b3b552c895d6174c48310048f","name":"Alexander Sitkovetsky","registered_at":"2026-06-12T11:44:50Z","symbol":"NIM0287798","token_address":"0xe8a3c3a0ab179b92d653f4792aed2a9e56cc7cbc","type":"artist","uuid":"dec432d9-3a27-491e-968c-c6f12755f9c4"}
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 0xa7a2a9853ce92e58a7fd57b7653fd5cef5a7947b3b552c895d6174c48310048f. 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/dec432d9-3a27-491e-968c-c6f12755f9c4.json and https://artists.proofprofile.net/proofs/artist/dec432d9-3a27-491e-968c-c6f12755f9c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa7a2a9853ce92e58a7fd57b7653fd5cef5a7947b3b552c895d6174c48310048f","name":"Alexander Sitkovetsky","registered_at":"2026-06-12T11:44:50Z","symbol":"NIM0287798","token_address":"0xe8a3c3a0ab179b92d653f4792aed2a9e56cc7cbc","type":"artist","uuid":"dec432d9-3a27-491e-968c-c6f12755f9c4"}