Joni Van Rossum
type: MusicGroup
popularity: 13
followers: 223
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52ccfa22a411b8f5c05c2d5f1fa7d6996bc68fe78fa9221b897bfff1284162ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x52ccfa22a411b8f5c05c2d5f1fa7d6996bc68fe78fa9221b897bfff1284162ed","name":"Joni Van Rossum","registered_at":"2026-06-15T04:20:36Z","symbol":"NIM0680226","token_address":"0x19516d628811e1f41ea5b9b3992b0b45bddebc67","type":"artist","uuid":"e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e"}
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 0x52ccfa22a411b8f5c05c2d5f1fa7d6996bc68fe78fa9221b897bfff1284162ed. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e.json and https://artists.proofprofile.net/proofs/artist/e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0x52ccfa22a411b8f5c05c2d5f1fa7d6996bc68fe78fa9221b897bfff1284162ed","name":"Joni Van Rossum","registered_at":"2026-06-15T04:20:36Z","symbol":"NIM0680226","token_address":"0x19516d628811e1f41ea5b9b3992b0b45bddebc67","type":"artist","uuid":"e2bc7c0e-59b1-4ccb-b77b-e2dbbea0892e"}
album: The Song Sings Itself
  type: MusicAlbum
  date published: 2015-11-13
album: Yearning Waltz
  type: MusicAlbum
  date published: 2019-11-21
album: Rain Kindly
  type: MusicAlbum
  date published: 2020-11-18
album: Lost Boy (Instrumental)
  type: MusicAlbum
  date published: 2020-12-31