Tatiana Samouil
type: MusicGroup
genre: chamber music
popularity: 7
followers: 216
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4c3d621ce75d65f910ef6923d8e9e0d4e1676bdf90e51a4a9695104fdf0f635
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8b82cad-54c0-4d9c-a0aa-b178e94fcc29.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8b82cad-54c0-4d9c-a0aa-b178e94fcc29.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8b82cad-54c0-4d9c-a0aa-b178e94fcc29
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4c3d621ce75d65f910ef6923d8e9e0d4e1676bdf90e51a4a9695104fdf0f635","name":"Tatiana Samouil","registered_at":"2026-06-21T16:21:59Z","symbol":"NIM1971152","token_address":"0x88414346eec57eab3565a8424ce9c65f3065260b","type":"artist","uuid":"f8b82cad-54c0-4d9c-a0aa-b178e94fcc29"}
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 0xc4c3d621ce75d65f910ef6923d8e9e0d4e1676bdf90e51a4a9695104fdf0f635. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8b82cad-54c0-4d9c-a0aa-b178e94fcc29.json and https://artists.proofprofile.net/proofs/artist/f8b82cad-54c0-4d9c-a0aa-b178e94fcc29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0xc4c3d621ce75d65f910ef6923d8e9e0d4e1676bdf90e51a4a9695104fdf0f635","name":"Tatiana Samouil","registered_at":"2026-06-21T16:21:59Z","symbol":"NIM1971152","token_address":"0x88414346eec57eab3565a8424ce9c65f3065260b","type":"artist","uuid":"f8b82cad-54c0-4d9c-a0aa-b178e94fcc29"}
album: Debussy: Sonates, danses et rhapsodies
  type: MusicAlbum
  date published: 2018-03-23