Jason Hartman
type: MusicGroup
description: Jason Hartman is a South African singer-songwriter and the 2009 co-winner of season 5 of the Idols (South Africa). After a malfunction occurred with the text lines in the finals, it was decided that e
popularity: 4
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65803ba3a5e25d1f5ff5901d183d315ef162bbbfd8b788b9beef3dedd00c5d1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cceee3b-0008-4244-9f4a-9b3f3df075f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cceee3b-0008-4244-9f4a-9b3f3df075f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9cceee3b-0008-4244-9f4a-9b3f3df075f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x65803ba3a5e25d1f5ff5901d183d315ef162bbbfd8b788b9beef3dedd00c5d1c","name":"Jason Hartman","registered_at":"2026-06-20T04:13:37Z","symbol":"NIM1508767","token_address":"0x8b320f56425bc27267aed9547873637b27eef5fb","type":"artist","uuid":"9cceee3b-0008-4244-9f4a-9b3f3df075f3"}
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 0x65803ba3a5e25d1f5ff5901d183d315ef162bbbfd8b788b9beef3dedd00c5d1c. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cceee3b-0008-4244-9f4a-9b3f3df075f3.json and https://artists.proofprofile.net/proofs/artist/9cceee3b-0008-4244-9f4a-9b3f3df075f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x65803ba3a5e25d1f5ff5901d183d315ef162bbbfd8b788b9beef3dedd00c5d1c","name":"Jason Hartman","registered_at":"2026-06-20T04:13:37Z","symbol":"NIM1508767","token_address":"0x8b320f56425bc27267aed9547873637b27eef5fb","type":"artist","uuid":"9cceee3b-0008-4244-9f4a-9b3f3df075f3"}
album: On The Run
  type: MusicAlbum
  date published: 2009-09-28
album: On The Run
  type: MusicAlbum
  date published: 2009-10-19