Dora Jar
type: MusicGroup
description: Dora Jarkowski (born October 12, 1996), known professionally as Dora Jar, is an American bedroom pop musician. She has released a studio album, two extended plays, and three singles as of 2024. She ha
popularity: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2718002f794fda4a359e27f39f1ed6d09de887eb58fff8593ff95dd4580efe26
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953696
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953696
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/72050838-81e3-4e06-aca3-b27d042ff571.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/72050838-81e3-4e06-aca3-b27d042ff571.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/72050838-81e3-4e06-aca3-b27d042ff571
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:45:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2718002f794fda4a359e27f39f1ed6d09de887eb58fff8593ff95dd4580efe26","name":"Dora Jar","registered_at":"2026-06-14T16:27:34Z","symbol":"NIM0510084","token_address":"0x3d750b9ae56152634863a3a51cc9c636b388ebf7","type":"artist","uuid":"72050838-81e3-4e06-aca3-b27d042ff571"}
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 0x2718002f794fda4a359e27f39f1ed6d09de887eb58fff8593ff95dd4580efe26. Chain 2 (Bitcoin): anchored in block 953696 (2026-06-14T21:45:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72050838-81e3-4e06-aca3-b27d042ff571.json and https://artists.proofprofile.net/proofs/artist/72050838-81e3-4e06-aca3-b27d042ff571.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:45:57Z
  text: {"copyright_id":"0x2718002f794fda4a359e27f39f1ed6d09de887eb58fff8593ff95dd4580efe26","name":"Dora Jar","registered_at":"2026-06-14T16:27:34Z","symbol":"NIM0510084","token_address":"0x3d750b9ae56152634863a3a51cc9c636b388ebf7","type":"artist","uuid":"72050838-81e3-4e06-aca3-b27d042ff571"}