@spec decode(integer()) :: map()

I am the delta decode function.

Given an integer, I cue it to see the underlying noun. Afterwards, I put it into the Elixir map format.

@spec delta_add(integer(), integer()) :: integer()

I am the delta add function.

Given two deltas, I decode them into their underlying maps, merge them appropriately, and hash bringing them to the integer format.

@spec delta_sub(integer(), integer()) :: integer()

I am the delta sub function.

Given two deltas, I decode them into their underlying maps, negate the second argument and then merge them appropriately, hashing the result.

@spec hash(map()) :: integer()

Given a delta-preimage - i.e. a map - I make it into a noun, jamming the result.