The basic principles applying to the Prizm Proof of Stake algorithm:
The cumulative complexity value is stored as a parameter in each block, and each subsequent block
receives its new "complexity" from the value of the previous block. In the case of ambiguity, the network
achieves consensus by choosing a block or chain fragment with the highest cumulative complexity.
In order for account holders not to move their funds from one account to another as a means of
manipulating in order to be able to generate blocks, coins must be stationary within the account for 1,440
blocks before they can contribute to the block generation process. Coins that meet this criterion
contribute to an efficient account balance, and that balance is used to determine the probability of
forging.
To prevent an attacker from creating a new chain all the way from the Genesis block, the network only
allows the restructuring of the chain of 720 blocks located behind the current block. Any block below this
threshold shall be rejected. This move threshold can be considered as the only fixed PZM checkpoint.
Due to the extremely low probability that any account will take over the Blockchain management by
creating its own chain of blocks, transactions are considered safe if they are encoded into a block that is
located 10 blocks behind the current block.
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Comparsion with Peercoin