Question $1)$

The core value of the blockchain model includes:

Efficiently determine whether a particular block has been included in the blockchain

Shared collaboration: any participant can provide updates with the approval of the Notary or the consensus of the group.

Consistency of view: every participant gets the current, updated view of the same set of data.

All of the above

Question $2)$

In the Asymmetric Encryption between John and Jill, the Private key of Antonino is used to encrypt a message that is sent by John to Jill for what purpose?:

To confirm that the message can only be read by Jill

To confirm that the message could only have been sent by John

To verify the contents of the message have not changed

To verify the date and length of the message

Question $3)$

In the Asymmetric Encryption between John and Jill, the Public key of Isidora is used to encrypt a message that is sent by John to Jill for what purpose?:

To confirm that the message can only be read by Jill

To confirm that the message could only have been sent by John

To verify the contents of the message have not changed

To verify the date and length of the message