Ballot

A Ballot represents a particular user's votes in a poll, as well as their next valid nonce. It is akin to a voting slip, which belongs to only one voter and contains a list of their choices.

Symbol	Name	Comments
$blt_{v}$	An array of vote weights	$blt_{v[i]}$ refers to the vote weights assigned to vote option $i$
$blt_n$	The current nonce	Starts from 0 and increments, so the first valid command must have nonce 1
$blt_d$	The vote option tree depth	The depth of the vote option tree

The hash $blt$ is computed as such:

1. Compute the Merkle root of $blt_v$, arity 5, of a tree of depth $blt_d$; let this value be $blt_r$
2. Compute $poseidon_2([blt_n, blt_r])$