The first scheduled ISO was put on hold to make key changes to the contract adding additional code to make it more difficult for bots to start sending ETH to the contract before it was publicly announced.
In an effort to further protect the ISO against bots we have deployed 5 identical contracts.
One of the 5 contracts will be chosen at random by the Unistake team to become the official ISO, rendering the other 4 contracts obsolete.
The purpose for this is so that any human or bot that is watching the blockchain for the deployment will have a 4 in 5 chance of losing their ETH. Reducing the likelihood of anyone attempting to take up all the allocation before the official announcement.