Entree
type: MusicGroup
genre: polka
popularity: 2
followers: 354
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd8afe5ba42253dddb250c40bc461697e62f4ba6d314f93434858a6aa1be959c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/361d41a3-9487-4163-a6bb-49b51f473309.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/361d41a3-9487-4163-a6bb-49b51f473309.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/361d41a3-9487-4163-a6bb-49b51f473309
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
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 0xbd8afe5ba42253dddb250c40bc461697e62f4ba6d314f93434858a6aa1be959c. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/361d41a3-9487-4163-a6bb-49b51f473309.json and https://artists.proofprofile.net/proofs/artist/361d41a3-9487-4163-a6bb-49b51f473309.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:44:13Z
album: Якби я міг знати
  type: MusicAlbum
  date published: 2007-11-17
album: Кома
  type: MusicAlbum
  date published: 2018-06-15
album: Coma
  type: MusicAlbum
  date published: 2018-06-22
album: Моя злива
  type: MusicAlbum
  date published: 2019-02-14
album: Думай
  type: MusicAlbum
  date published: 2019-12-31
album: Із крейдою в руці
  type: MusicAlbum
  date published: 2020-06-05
album: Брехня
  type: MusicAlbum
  date published: 2020-10-06
album: Правда
  type: MusicAlbum
  date published: 2021-06-18
album: Ми трава
  type: MusicAlbum
  date published: 2022-04-18