Marijke Merckens
type: MusicGroup
genre: nederpop
genre: polka
description: Marijke Merckens (3 February 1940 – 9 February 2023) was a Dutch actress and singer. Filmography Film A Woman Like Eve (1979) (1981) Honneponnetje (1988) Television Leute wie du und ich (1982) (1
popularity: 3
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7c4893a70fc5cc9ca1a47994bd07a032fa8ccf5c8df95398faf7e79eaf5d195
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/453ac0c4-8b81-46fc-807a-e7face4e5353.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/453ac0c4-8b81-46fc-807a-e7face4e5353.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/453ac0c4-8b81-46fc-807a-e7face4e5353
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7c4893a70fc5cc9ca1a47994bd07a032fa8ccf5c8df95398faf7e79eaf5d195","name":"Marijke Merckens","registered_at":"2026-06-16T13:45:13Z","symbol":"NIM1070370","token_address":"0xbfcb02279e30956d3206d4d036b264e33a34a73a","type":"artist","uuid":"453ac0c4-8b81-46fc-807a-e7face4e5353"}
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 0xf7c4893a70fc5cc9ca1a47994bd07a032fa8ccf5c8df95398faf7e79eaf5d195. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/453ac0c4-8b81-46fc-807a-e7face4e5353.json and https://artists.proofprofile.net/proofs/artist/453ac0c4-8b81-46fc-807a-e7face4e5353.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0xf7c4893a70fc5cc9ca1a47994bd07a032fa8ccf5c8df95398faf7e79eaf5d195","name":"Marijke Merckens","registered_at":"2026-06-16T13:45:13Z","symbol":"NIM1070370","token_address":"0xbfcb02279e30956d3206d4d036b264e33a34a73a","type":"artist","uuid":"453ac0c4-8b81-46fc-807a-e7face4e5353"}
album: Sprookjes Voor Grote Mensen (Expanded Edition / Remastered 2024)
  type: MusicAlbum
  date published: 1968-01-01