Josef Oplt
type: MusicGroup
genre: polka
popularity: 16
followers: 227
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa148b69669032d32ed862c2704b7ff364a95b280a73a6db1b5a256e7a0328532
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6f68de6c-802b-417d-9d7b-e1bc2c63d941.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6f68de6c-802b-417d-9d7b-e1bc2c63d941.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6f68de6c-802b-417d-9d7b-e1bc2c63d941
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa148b69669032d32ed862c2704b7ff364a95b280a73a6db1b5a256e7a0328532","name":"Josef Oplt","registered_at":"2026-06-14T16:13:11Z","symbol":"NIM0506649","token_address":"0xae76de87755ee9a663acaeb37d2ad0029dbd17e6","type":"artist","uuid":"6f68de6c-802b-417d-9d7b-e1bc2c63d941"}
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 0xa148b69669032d32ed862c2704b7ff364a95b280a73a6db1b5a256e7a0328532. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f68de6c-802b-417d-9d7b-e1bc2c63d941.json and https://artists.proofprofile.net/proofs/artist/6f68de6c-802b-417d-9d7b-e1bc2c63d941.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0xa148b69669032d32ed862c2704b7ff364a95b280a73a6db1b5a256e7a0328532","name":"Josef Oplt","registered_at":"2026-06-14T16:13:11Z","symbol":"NIM0506649","token_address":"0xae76de87755ee9a663acaeb37d2ad0029dbd17e6","type":"artist","uuid":"6f68de6c-802b-417d-9d7b-e1bc2c63d941"}
album: Jak zamlada
  type: MusicAlbum
  date published: 2015-09-01
album: Život v rukách mám
  type: MusicAlbum
  date published: 2021-05-01