Elmira Zherzdeva
type: MusicGroup
description: Elmira Sergeyevna Zherzdeva (; 6 March 1936 – 18 May 2023) was a Soviet and Russian singer and Meritorious Artist (since 1992). Early life and career Zherzdeva was born in Bolokhovo, Soviet Union.
popularity: 26
followers: 435
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8efed25cbfdb987dd46fdc9363e15b54579bd4da1a3f77f82e93414f87ff8182
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a710d6f-9151-438c-9712-26858a63e84d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a710d6f-9151-438c-9712-26858a63e84d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a710d6f-9151-438c-9712-26858a63e84d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8efed25cbfdb987dd46fdc9363e15b54579bd4da1a3f77f82e93414f87ff8182","name":"Elmira Zherzdeva","registered_at":"2026-06-12T01:59:46Z","symbol":"NIM0159332","token_address":"0x7abfa319edd6319d026d0d688b56b3228b23e951","type":"artist","uuid":"7a710d6f-9151-438c-9712-26858a63e84d"}
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 0x8efed25cbfdb987dd46fdc9363e15b54579bd4da1a3f77f82e93414f87ff8182. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a710d6f-9151-438c-9712-26858a63e84d.json and https://artists.proofprofile.net/proofs/artist/7a710d6f-9151-438c-9712-26858a63e84d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x8efed25cbfdb987dd46fdc9363e15b54579bd4da1a3f77f82e93414f87ff8182","name":"Elmira Zherzdeva","registered_at":"2026-06-12T01:59:46Z","symbol":"NIM0159332","token_address":"0x7abfa319edd6319d026d0d688b56b3228b23e951","type":"artist","uuid":"7a710d6f-9151-438c-9712-26858a63e84d"}