MC Świerzb
type: MusicGroup
genre: disco polo
popularity: 10
followers: 436
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66f8154f158e8e5a5210ad701d2c8ee14bfc7f9d1b8f23b85730c57cea23e70c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e8d6b650-dd6c-4961-bc6b-bd0092661ed5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e8d6b650-dd6c-4961-bc6b-bd0092661ed5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e8d6b650-dd6c-4961-bc6b-bd0092661ed5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66f8154f158e8e5a5210ad701d2c8ee14bfc7f9d1b8f23b85730c57cea23e70c","name":"MC Świerzb","registered_at":"2026-06-21T09:51:11Z","symbol":"NIM1889191","token_address":"0x36f4229d7e165df60f560490892966780eee174b","type":"artist","uuid":"e8d6b650-dd6c-4961-bc6b-bd0092661ed5"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8154f158e8e5a5210ad701d2c8ee14bfc7f9d1b8f23b85730c57cea23e70c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8d6b650-dd6c-4961-bc6b-bd0092661ed5.json and https://artists.proofprofile.net/proofs/artist/e8d6b650-dd6c-4961-bc6b-bd0092661ed5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x66f8154f158e8e5a5210ad701d2c8ee14bfc7f9d1b8f23b85730c57cea23e70c","name":"MC Świerzb","registered_at":"2026-06-21T09:51:11Z","symbol":"NIM1889191","token_address":"0x36f4229d7e165df60f560490892966780eee174b","type":"artist","uuid":"e8d6b650-dd6c-4961-bc6b-bd0092661ed5"}
album: Hej maleńka jestem rolnik
  type: MusicAlbum
  date published: 2020-07-13
album: Hej maleńka jestem rolnik (Dance Remix)
  type: MusicAlbum
  date published: 2020-07-31
album: Mam na Ciebie oko
  type: MusicAlbum
  date published: 2020-10-11
album: Niech wszyscy się bawią
  type: MusicAlbum
  date published: 2020-12-13
album: Niech wszyscy się bawią (Dance Remix)
  type: MusicAlbum
  date published: 2021-01-08
album: Gdy Będę Blisko
  type: MusicAlbum
  date published: 2021-07-28