Jasperina de Jong
type: MusicGroup
genre: nederpop
popularity: 16
followers: 1543
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff2f4c7ffd602c23341c49f529666254879e810aa6aff782482145de64797f29
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2562f4bf-9f77-4d4b-bc23-84475a6090dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2562f4bf-9f77-4d4b-bc23-84475a6090dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2562f4bf-9f77-4d4b-bc23-84475a6090dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff2f4c7ffd602c23341c49f529666254879e810aa6aff782482145de64797f29","name":"Jasperina de Jong","registered_at":"2026-06-14T08:18:09Z","symbol":"NIM0393326","token_address":"0x59ad22cdcc01b8cfa47b713b74cd61ca1092b8cc","type":"artist","uuid":"2562f4bf-9f77-4d4b-bc23-84475a6090dd"}
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 0xff2f4c7ffd602c23341c49f529666254879e810aa6aff782482145de64797f29. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2562f4bf-9f77-4d4b-bc23-84475a6090dd.json and https://artists.proofprofile.net/proofs/artist/2562f4bf-9f77-4d4b-bc23-84475a6090dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0xff2f4c7ffd602c23341c49f529666254879e810aa6aff782482145de64797f29","name":"Jasperina de Jong","registered_at":"2026-06-14T08:18:09Z","symbol":"NIM0393326","token_address":"0x59ad22cdcc01b8cfa47b713b74cd61ca1092b8cc","type":"artist","uuid":"2562f4bf-9f77-4d4b-bc23-84475a6090dd"}
album: Kalm, Kalm En Andere Nederlandse Liedjes
  type: MusicAlbum
  date published: 1970-01-01
album: Zingt Marlene Dietrich
  type: MusicAlbum
  date published: 2002-04-20