Tamara Sinyavskaya
type: MusicGroup
genre: opera
description: Tamara Ilyinichna Sinyavskaya (; born 6 July 1943) is a Soviet and Russian mezzo-soprano from the Bolshoi Theatre. She was awarded the title of People's Artist of the USSR in 1982. In 1997, planet
popularity: 4
followers: 454
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e99f74010d4c60c1943977d7cf475a1fa27732c92e47336e962b15c014411f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db59e273-ff5b-40fc-a215-b5d9262de880.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/db59e273-ff5b-40fc-a215-b5d9262de880.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/db59e273-ff5b-40fc-a215-b5d9262de880
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x2e99f74010d4c60c1943977d7cf475a1fa27732c92e47336e962b15c014411f2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db59e273-ff5b-40fc-a215-b5d9262de880.json and https://artists.proofprofile.net/proofs/artist/db59e273-ff5b-40fc-a215-b5d9262de880.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x2e99f74010d4c60c1943977d7cf475a1fa27732c92e47336e962b15c014411f2","name":"Tamara Sinyavskaya","registered_at":"2026-06-21T04:38:41Z","symbol":"NIM1822225","token_address":"0xc22377b48b1cb2efe25a762b66312672ddec855b","type":"artist","uuid":"db59e273-ff5b-40fc-a215-b5d9262de880"}
album: Тамара Синявская поёт песни Матвея Блантера
  type: MusicAlbum
  date published: 1999-01-01
album: Великие исполнители России: Тамара Синявская (Deluxe Version)
  type: MusicAlbum
  date published: 2001
album: Золотая коллекция
  type: MusicAlbum
  date published: 2023-05-25