BRZYTWA OJCA
type: MusicGroup
genre: punk
popularity: 4
followers: 492
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17cc346b81c16b9f4bc6d0f7feaf0173d9434075832205d293bd5cc09fa1e018
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x17cc346b81c16b9f4bc6d0f7feaf0173d9434075832205d293bd5cc09fa1e018","name":"BRZYTWA OJCA","registered_at":"2026-06-20T06:56:14Z","symbol":"NIM1547168","token_address":"0x6ff02a191314d152aa378b920df825cc49b876ed","type":"artist","uuid":"a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61"}
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 0x17cc346b81c16b9f4bc6d0f7feaf0173d9434075832205d293bd5cc09fa1e018. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61.json and https://artists.proofprofile.net/proofs/artist/a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x17cc346b81c16b9f4bc6d0f7feaf0173d9434075832205d293bd5cc09fa1e018","name":"BRZYTWA OJCA","registered_at":"2026-06-20T06:56:14Z","symbol":"NIM1547168","token_address":"0x6ff02a191314d152aa378b920df825cc49b876ed","type":"artist","uuid":"a4ef9d0a-8b30-4d4e-a6fa-0342de59ee61"}
album: Brzytwa Ojca!
  type: MusicAlbum
  date published: 2011-07-01