Ekaterina Varnava
type: MusicGroup
description: Ekaterina Vladimirovna Varnava (born 9 December 1984, Moscow, USSR) is a Russian theatre, film, television and voice actress, television presenter, comedian and choreographer. She is best known as a p
popularity: 7
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb4a2d5ace8198f9a49d83f623a2f2b50c114a4f0d43a6be66659f5b870a8323
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea858f92-9608-4c5c-9dd2-d6d21922f34f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea858f92-9608-4c5c-9dd2-d6d21922f34f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea858f92-9608-4c5c-9dd2-d6d21922f34f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbb4a2d5ace8198f9a49d83f623a2f2b50c114a4f0d43a6be66659f5b870a8323","name":"Ekaterina Varnava","registered_at":"2026-06-21T10:38:31Z","symbol":"NIM1900060","token_address":"0x23964d2f3cc192a00409638a463c266692f9a669","type":"artist","uuid":"ea858f92-9608-4c5c-9dd2-d6d21922f34f"}
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 0xbb4a2d5ace8198f9a49d83f623a2f2b50c114a4f0d43a6be66659f5b870a8323. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea858f92-9608-4c5c-9dd2-d6d21922f34f.json and https://artists.proofprofile.net/proofs/artist/ea858f92-9608-4c5c-9dd2-d6d21922f34f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xbb4a2d5ace8198f9a49d83f623a2f2b50c114a4f0d43a6be66659f5b870a8323","name":"Ekaterina Varnava","registered_at":"2026-06-21T10:38:31Z","symbol":"NIM1900060","token_address":"0x23964d2f3cc192a00409638a463c266692f9a669","type":"artist","uuid":"ea858f92-9608-4c5c-9dd2-d6d21922f34f"}