Willi Tokarev
type: MusicGroup
description: Willi Ivanovich Tokarev (; 11 November 1934 – 4 August 2019) was a Russian-American singer-songwriter. In the 1980s, he became famous throughout the Soviet Union for his songs about life as a Russian
popularity: 4
followers: 1405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31b1317b4dc82d38ba6ca19de18a85cb6e08e4f9b07addc128dbb648d905267a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15e7decf-a413-418b-8908-9729879ddd57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15e7decf-a413-418b-8908-9729879ddd57.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15e7decf-a413-418b-8908-9729879ddd57
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x31b1317b4dc82d38ba6ca19de18a85cb6e08e4f9b07addc128dbb648d905267a","name":"Willi Tokarev","registered_at":"2026-06-15T21:04:37Z","symbol":"NIM0831515","token_address":"0xe308039cbeca22ebbc2bb2895a6cb3dc6f867cbe","type":"artist","uuid":"15e7decf-a413-418b-8908-9729879ddd57"}
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 0x31b1317b4dc82d38ba6ca19de18a85cb6e08e4f9b07addc128dbb648d905267a. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15e7decf-a413-418b-8908-9729879ddd57.json and https://artists.proofprofile.net/proofs/artist/15e7decf-a413-418b-8908-9729879ddd57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
  text: {"copyright_id":"0x31b1317b4dc82d38ba6ca19de18a85cb6e08e4f9b07addc128dbb648d905267a","name":"Willi Tokarev","registered_at":"2026-06-15T21:04:37Z","symbol":"NIM0831515","token_address":"0xe308039cbeca22ebbc2bb2895a6cb3dc6f867cbe","type":"artist","uuid":"15e7decf-a413-418b-8908-9729879ddd57"}
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