Jan Gorissen
type: MusicGroup
genre: polka
popularity: 6
followers: 447
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc4d61f56b7e4c7ed82c7581aa94d55ef3547cedd245037aaa062da0a56c7f05
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1499c1a3-58c9-4b0d-802c-977ee91a9aa3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1499c1a3-58c9-4b0d-802c-977ee91a9aa3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1499c1a3-58c9-4b0d-802c-977ee91a9aa3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc4d61f56b7e4c7ed82c7581aa94d55ef3547cedd245037aaa062da0a56c7f05","name":"Jan Gorissen","registered_at":"2026-06-15T20:38:12Z","symbol":"NIM0825223","token_address":"0x895957e8426a6c78a5c344f9173035e18253cc2c","type":"artist","uuid":"1499c1a3-58c9-4b0d-802c-977ee91a9aa3"}
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 0xcc4d61f56b7e4c7ed82c7581aa94d55ef3547cedd245037aaa062da0a56c7f05. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1499c1a3-58c9-4b0d-802c-977ee91a9aa3.json and https://artists.proofprofile.net/proofs/artist/1499c1a3-58c9-4b0d-802c-977ee91a9aa3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0xcc4d61f56b7e4c7ed82c7581aa94d55ef3547cedd245037aaa062da0a56c7f05","name":"Jan Gorissen","registered_at":"2026-06-15T20:38:12Z","symbol":"NIM0825223","token_address":"0x895957e8426a6c78a5c344f9173035e18253cc2c","type":"artist","uuid":"1499c1a3-58c9-4b0d-802c-977ee91a9aa3"}
album: Het Zigeunerkaapje / Iedereen Zoekt Geluk In 't Leven
  type: MusicAlbum
  date published: 1965-10-22
album: Slavenkoor / Espana Cani
  type: MusicAlbum
  date published: 1966-07-25
album: Klokkenwals / Barcarolle
  type: MusicAlbum
  date published: 1966-08-02
album: Johnny Hoes presenteert: Jan Speelt Voor Moeder
  type: MusicAlbum
  date published: 1975-02-21
album: Telstar Dubbel Goud, Vol. 44
  type: MusicAlbum
  date published: 1976-12-10
album: Telstar Dubbel Goud, Vol. 54
  type: MusicAlbum
  date published: 1976-12-10
album: Telstar Dubbel Goud, Vol. 4
  type: MusicAlbum
  date published: 1976-12-10
album: Malando's Tango's
  type: MusicAlbum
  date published: 1980-07-07
album: Golden Accordeon Hits
  type: MusicAlbum
  date published: 1986-09-14
album: Speelt Gouden Successen Op Zijn Wonderaccordeon
  type: MusicAlbum
  date published: 1988-01-24