Olga Borodina
type: MusicGroup
description: thumb|Olga Borodina (2012). Olga Vladimirovna Borodina (born 29 July 1963, in Leningrad)Borodina, Olga as RussiaProfile.org is a leading mezzo-soprano, known for her roles in Russian operas at her ho
popularity: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f20ecf8287ec9210167eba8662e42203824aef42ba53fcb4c7353c9025a4605
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1dcc387c-0d63-41b7-b4a9-3baa5e10678c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1dcc387c-0d63-41b7-b4a9-3baa5e10678c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1dcc387c-0d63-41b7-b4a9-3baa5e10678c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f20ecf8287ec9210167eba8662e42203824aef42ba53fcb4c7353c9025a4605","name":"Olga Borodina","registered_at":"2026-06-15T23:57:27Z","symbol":"NIM0872762","token_address":"0xad58340dcf6f87ba0ba5da2d15a225c13c447882","type":"artist","uuid":"1dcc387c-0d63-41b7-b4a9-3baa5e10678c"}
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 0x3f20ecf8287ec9210167eba8662e42203824aef42ba53fcb4c7353c9025a4605. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1dcc387c-0d63-41b7-b4a9-3baa5e10678c.json and https://artists.proofprofile.net/proofs/artist/1dcc387c-0d63-41b7-b4a9-3baa5e10678c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x3f20ecf8287ec9210167eba8662e42203824aef42ba53fcb4c7353c9025a4605","name":"Olga Borodina","registered_at":"2026-06-15T23:57:27Z","symbol":"NIM0872762","token_address":"0xad58340dcf6f87ba0ba5da2d15a225c13c447882","type":"artist","uuid":"1dcc387c-0d63-41b7-b4a9-3baa5e10678c"}