Any cultivator.
When seeking to use the teleportation array they were standing in to travel to another teleportation array, they needed to know that array's verification method.
In other words, only after a cultivator activated the teleportation array
and saw the teleportation array at their destination on the small disk within it
could they proceed with the transmission and use the teleportation array to send themselves to an extremely distant place.
As for He Song,
the reason he could now see another white dot on the disk besides this teleportation array
perhaps lay in the fact that the two teleportation arrays were simply too close together,
as well as the fact that the teleportation array He Song had set up had been built by referring to the other one.
Since the spirit patterns within these two teleportation arrays were not actually different,
there were naturally no restrictions on transmission between them.
However,
if He Song wished to rely on the teleportation array he had set up to travel to other teleportation arrays,
he would likely need to know the verification method of the other array.
Otherwise, the teleportation array He Song had set up
would likely only be able to transmit within itself.
In other words,
if He Song did not obtain the verification methods of other teleportation arrays,
he could only travel back and forth between the teleportation arrays he had set up, unable to transmit to arrays set up by others.
Of course,
according to He Song's conjecture,
some teleportation arrays located in major cities and provided for cultivators' daily use
would likely omit this step and choose to make their verification methods public.
That way, as long as cultivators had been there before, they would likely be able to obtain that teleportation array's verification method.
Afterward, they