Marta Tafelski
type: MusicGroup
genre: singer-songwriter
popularity: 4
followers: 197
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x918a491ba8c33b161a7c865be0b8de66d54dc81f9bc449e3007cceafe491265f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aab6068a-66aa-4bb8-80a7-d5ae6c29827f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aab6068a-66aa-4bb8-80a7-d5ae6c29827f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aab6068a-66aa-4bb8-80a7-d5ae6c29827f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x918a491ba8c33b161a7c865be0b8de66d54dc81f9bc449e3007cceafe491265f","name":"Marta Tafelski","registered_at":"2026-06-20T09:21:04Z","symbol":"NIM1577797","token_address":"0x5b1e5dc2c3fd4276c02aaecb93d57990bc812b85","type":"artist","uuid":"aab6068a-66aa-4bb8-80a7-d5ae6c29827f"}
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 0x918a491ba8c33b161a7c865be0b8de66d54dc81f9bc449e3007cceafe491265f. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aab6068a-66aa-4bb8-80a7-d5ae6c29827f.json and https://artists.proofprofile.net/proofs/artist/aab6068a-66aa-4bb8-80a7-d5ae6c29827f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x918a491ba8c33b161a7c865be0b8de66d54dc81f9bc449e3007cceafe491265f","name":"Marta Tafelski","registered_at":"2026-06-20T09:21:04Z","symbol":"NIM1577797","token_address":"0x5b1e5dc2c3fd4276c02aaecb93d57990bc812b85","type":"artist","uuid":"aab6068a-66aa-4bb8-80a7-d5ae6c29827f"}
album: Z Popiołów Wstaje
  type: MusicAlbum
  date published: 2019-07-28
album: Z Popiołów Wstaję
  type: MusicAlbum
  date published: 2023-07-22