Roman Tkachoff
type: MusicGroup
popularity: 2
followers: 415
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf771ae32f90ddf79afdb4d4023f5dabd2edbcda79232c46a385b395aed0d34d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/648bf517-c289-4ad8-adb7-e4b68a03b290.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/648bf517-c289-4ad8-adb7-e4b68a03b290.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/648bf517-c289-4ad8-adb7-e4b68a03b290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf771ae32f90ddf79afdb4d4023f5dabd2edbcda79232c46a385b395aed0d34d5","name":"Roman Tkachoff","registered_at":"2026-06-17T00:35:11Z","symbol":"NIM1225451","token_address":"0x45f73c632711b31278dc6e6378a1626231c09a67","type":"artist","uuid":"648bf517-c289-4ad8-adb7-e4b68a03b290"}
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 0xf771ae32f90ddf79afdb4d4023f5dabd2edbcda79232c46a385b395aed0d34d5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/648bf517-c289-4ad8-adb7-e4b68a03b290.json and https://artists.proofprofile.net/proofs/artist/648bf517-c289-4ad8-adb7-e4b68a03b290.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xf771ae32f90ddf79afdb4d4023f5dabd2edbcda79232c46a385b395aed0d34d5","name":"Roman Tkachoff","registered_at":"2026-06-17T00:35:11Z","symbol":"NIM1225451","token_address":"0x45f73c632711b31278dc6e6378a1626231c09a67","type":"artist","uuid":"648bf517-c289-4ad8-adb7-e4b68a03b290"}
album: Road to the Sun
  type: MusicAlbum
  date published: 2015-09-30
album: Road To The Sun
  type: MusicAlbum
  date published: 2015-09-30
album: Road To The Sun
  type: MusicAlbum
  date published: 2015-09-30
album: Breath of Heart
  type: MusicAlbum
  date published: 2015-11-23
album: Breath of Heart
  type: MusicAlbum
  date published: 2015-11-23
album: City Bird
  type: MusicAlbum
  date published: 2016-05-02
album: Sahara
  type: MusicAlbum
  date published: 2017-01-05
album: Kataria
  type: MusicAlbum
  date published: 2017-06-02
album: Assol
  type: MusicAlbum
  date published: 2017-12-05
album: Darya
  type: MusicAlbum
  date published: 2018-06-06
album: Darya
  type: MusicAlbum
  date published: 2018-06-06
album: To You
  type: MusicAlbum
  date published: 2019-10-11