Blockchain Participants and Permissions Quiz
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Questions and Answers

What was one of the early pre-blockchain technologies described in the text?

  • Vault systems for computer systems
  • Timestamping digital documents
  • Digital cash
  • The Merkle tree (correct)

Who described an approach to public key distribution and digital signatures called tree authentication?

  • Ralph Merkle (correct)
  • W. Scott Stornetta
  • David Chaum
  • Stuart Haber

In what year did Stuart Haber and W. Scott Stornetta publish an article describing how to timestamp digital documents?

  • 2016
  • 1991 (correct)
  • 1989
  • 1982

What did David Chaum describe in his Ph.D. dissertation for the University of California, Berkeley?

<p>A vault system for establishing, maintaining and trusting computer systems among mutually suspicious groups (C)</p> Signup and view all the answers

Which of the following is NOT mentioned in the text as an entity researching and deploying blockchain technology?

<p>Individuals (A)</p> Signup and view all the answers

What year did the burgeoning open-source community begin developing complete enterprise platforms?

<p>2016 (A)</p> Signup and view all the answers

What is the Merkle tree described in the text?

<p>A data structure for verifying individual records (B)</p> Signup and view all the answers

Who founded the company DigiCash in 1989?

<p>David Chaum (D)</p> Signup and view all the answers

What was the purpose of the vault system described by David Chaum in his Ph.D. dissertation?

<p>To establish, maintain and trust computer systems among mutually suspicious groups (C)</p> Signup and view all the answers

Which of the following was NOT mentioned as a pre-blockchain technology in the text?

<p>Blockchain itself (D)</p> Signup and view all the answers

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