Viktor Chouchkov
type: MusicGroup
genre: classical piano
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d82545b2ff3d1d37b04047bd7ba6e1c1501b78e8bd54515022d92c24bddb69a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09af3bf0-1736-4252-b2eb-269f76f96094.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09af3bf0-1736-4252-b2eb-269f76f96094.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09af3bf0-1736-4252-b2eb-269f76f96094
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9d82545b2ff3d1d37b04047bd7ba6e1c1501b78e8bd54515022d92c24bddb69a","name":"Viktor Chouchkov","registered_at":"2026-06-15T16:47:13Z","symbol":"NIM0770118","token_address":"0xbfb5a07f3fe2fd8f2549f5e8778eb3f1c16221ce","type":"artist","uuid":"09af3bf0-1736-4252-b2eb-269f76f96094"}
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 0x9d82545b2ff3d1d37b04047bd7ba6e1c1501b78e8bd54515022d92c24bddb69a. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09af3bf0-1736-4252-b2eb-269f76f96094.json and https://artists.proofprofile.net/proofs/artist/09af3bf0-1736-4252-b2eb-269f76f96094.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x9d82545b2ff3d1d37b04047bd7ba6e1c1501b78e8bd54515022d92c24bddb69a","name":"Viktor Chouchkov","registered_at":"2026-06-15T16:47:13Z","symbol":"NIM0770118","token_address":"0xbfb5a07f3fe2fd8f2549f5e8778eb3f1c16221ce","type":"artist","uuid":"09af3bf0-1736-4252-b2eb-269f76f96094"}
album: Suite All Over The World (Music from the league of Bulgarian and Hungarian Red Cross Societies)
  type: MusicAlbum
  date published: 1980
album: Виктор Чучков: Писма от бъдещето: продължение; Концертино за пиано и оркестър
  type: MusicAlbum
  date published: 1982-01-31
album: Sorceries For Piano
  type: MusicAlbum
  date published: 2007-04-18
album: TILT
  type: MusicAlbum
  date published: 2011-11-10