Vitaly Margulis
type: MusicGroup
genre: classical piano
description: Vitaly Iosifovich Margulis (16 April 192829 May 2011) was a Ukrainian-born classical pianist, musicologist and teacher. Biography Vitaly Margulis was born in the city of Kharkov in the USSR (now Khar
popularity: 15
followers: 2637
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4413d691ed90eca816b3f6ab42029fa4bea825acd0faf07a1b57a84ec3a234a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6c94ba9-913b-42dc-8f37-e1b4319aa7f1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6c94ba9-913b-42dc-8f37-e1b4319aa7f1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c6c94ba9-913b-42dc-8f37-e1b4319aa7f1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:33:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4413d691ed90eca816b3f6ab42029fa4bea825acd0faf07a1b57a84ec3a234a","name":"Vitaly Margulis","registered_at":"2026-06-15T01:24:36Z","symbol":"NIM0638209","token_address":"0xfd4f0c4e113e92515fa1c88ad78d923753a2732f","type":"artist","uuid":"c6c94ba9-913b-42dc-8f37-e1b4319aa7f1"}
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 0xc4413d691ed90eca816b3f6ab42029fa4bea825acd0faf07a1b57a84ec3a234a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6c94ba9-913b-42dc-8f37-e1b4319aa7f1.json and https://artists.proofprofile.net/proofs/artist/c6c94ba9-913b-42dc-8f37-e1b4319aa7f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xc4413d691ed90eca816b3f6ab42029fa4bea825acd0faf07a1b57a84ec3a234a","name":"Vitaly Margulis","registered_at":"2026-06-15T01:24:36Z","symbol":"NIM0638209","token_address":"0xfd4f0c4e113e92515fa1c88ad78d923753a2732f","type":"artist","uuid":"c6c94ba9-913b-42dc-8f37-e1b4319aa7f1"}