Marco Mark
type: MusicGroup
popularity: 3
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6e676ea7b275a49a3d69b44ba2bfafff4205d1b3a735c80f7dbe9183207d251
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adf1941a-7407-4e44-bbfa-18571222c594.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adf1941a-7407-4e44-bbfa-18571222c594.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adf1941a-7407-4e44-bbfa-18571222c594
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb6e676ea7b275a49a3d69b44ba2bfafff4205d1b3a735c80f7dbe9183207d251","name":"Marco Mark","registered_at":"2026-06-20T10:51:47Z","symbol":"NIM1596227","token_address":"0x019274d53f2895120287f05027941a3eb15a5ba7","type":"artist","uuid":"adf1941a-7407-4e44-bbfa-18571222c594"}
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 0xb6e676ea7b275a49a3d69b44ba2bfafff4205d1b3a735c80f7dbe9183207d251. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adf1941a-7407-4e44-bbfa-18571222c594.json and https://artists.proofprofile.net/proofs/artist/adf1941a-7407-4e44-bbfa-18571222c594.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xb6e676ea7b275a49a3d69b44ba2bfafff4205d1b3a735c80f7dbe9183207d251","name":"Marco Mark","registered_at":"2026-06-20T10:51:47Z","symbol":"NIM1596227","token_address":"0x019274d53f2895120287f05027941a3eb15a5ba7","type":"artist","uuid":"adf1941a-7407-4e44-bbfa-18571222c594"}
album: Als ze zegt dat gaat
  type: MusicAlbum
  date published: 2011-08-04
album: Wat een ander ook zegt
  type: MusicAlbum
  date published: 2011-08-04
album: Als ze zegt dat gaat
  type: MusicAlbum
  date published: 2011-08-19
album: Als ze zegt dat ze gaat
  type: MusicAlbum
  date published: 2011-10-31
album: Dans met mij (feat. Woerden Konnekt)
  type: MusicAlbum
  date published: 2013-05-07
album: Geloof me
  type: MusicAlbum
  date published: 2018-06-13
album: Geloof me
  type: MusicAlbum
  date published: 2018-06-13
album: Al Jouw Leugens en Verhalen & Leven Zonder Zorgen
  type: MusicAlbum
  date published: 2021-03-31
album: Lach De Wereld Tegemoet
  type: MusicAlbum
  date published: 2021-08-02
album: Vanavond
  type: MusicAlbum
  date published: 2022-02-22