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A block in the blockchain was found at time t . The next block in the blockchain was found at time t + Y .

A block in the blockchain was found at time t

.

The next block in the blockchain was found at time t

+

.

Assume that the total hash power of the network stays constant.

A block in the blockchain was found at time t

.

The next block in the blockchain was found at time t

+

.

Assume that the total hash power of the network stays constant.

The average value of Y is

20

minutes

The value of Y is at least

5

minutes.

The average value of

10

minutes

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