Michal Kaščák
type: MusicGroup
popularity: 2
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee7cd4bb737fc2ebc8a129161b566da0cdf50451a48fe027c94442862f2e109f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ff3aaa8-d17c-465b-8e62-db62b24fbe8d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ff3aaa8-d17c-465b-8e62-db62b24fbe8d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ff3aaa8-d17c-465b-8e62-db62b24fbe8d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee7cd4bb737fc2ebc8a129161b566da0cdf50451a48fe027c94442862f2e109f","name":"Michal Kaščák","registered_at":"2026-06-15T19:09:42Z","symbol":"NIM0804125","token_address":"0x46f25976a4d2e1e58e206bcce378eceefd70f5f4","type":"artist","uuid":"0ff3aaa8-d17c-465b-8e62-db62b24fbe8d"}
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 0xee7cd4bb737fc2ebc8a129161b566da0cdf50451a48fe027c94442862f2e109f. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ff3aaa8-d17c-465b-8e62-db62b24fbe8d.json and https://artists.proofprofile.net/proofs/artist/0ff3aaa8-d17c-465b-8e62-db62b24fbe8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0xee7cd4bb737fc2ebc8a129161b566da0cdf50451a48fe027c94442862f2e109f","name":"Michal Kaščák","registered_at":"2026-06-15T19:09:42Z","symbol":"NIM0804125","token_address":"0x46f25976a4d2e1e58e206bcce378eceefd70f5f4","type":"artist","uuid":"0ff3aaa8-d17c-465b-8e62-db62b24fbe8d"}