Вера Марецкая
type: MusicGroup
popularity: 3
followers: 102
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf61a57fcaca6128a65cc65839ac86b6cf318d5a276a96fb511eb15918a8b2b23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/abfdc1a1-075e-4385-b566-7e6532b6fd82.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/abfdc1a1-075e-4385-b566-7e6532b6fd82.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/abfdc1a1-075e-4385-b566-7e6532b6fd82
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf61a57fcaca6128a65cc65839ac86b6cf318d5a276a96fb511eb15918a8b2b23","name":"Вера Марецкая","registered_at":"2026-06-20T10:07:24Z","symbol":"NIM1587392","token_address":"0x83643c158d2b951b2193a56979f19394568b7dd4","type":"artist","uuid":"abfdc1a1-075e-4385-b566-7e6532b6fd82"}
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 0xf61a57fcaca6128a65cc65839ac86b6cf318d5a276a96fb511eb15918a8b2b23. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abfdc1a1-075e-4385-b566-7e6532b6fd82.json and https://artists.proofprofile.net/proofs/artist/abfdc1a1-075e-4385-b566-7e6532b6fd82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xf61a57fcaca6128a65cc65839ac86b6cf318d5a276a96fb511eb15918a8b2b23","name":"Вера Марецкая","registered_at":"2026-06-20T10:07:24Z","symbol":"NIM1587392","token_address":"0x83643c158d2b951b2193a56979f19394568b7dd4","type":"artist","uuid":"abfdc1a1-075e-4385-b566-7e6532b6fd82"}
album: Кошка, гулявшая сама по себе
  type: MusicAlbum
  date published: 1974
album: Редьярд Киплинг: Кошка, гулявшая сама по себе
  type: MusicAlbum
  date published: 1974-01-01