It is a maze, not a PIN
Search results call this a code because the prompt looks like a keypad. The players who cleared the pad describe a trace: start at the bottom, follow the symbols, exit the edge of the pad. That matches the late-keypad rule set. If a page offers a number for the Tower of Proving, treat it as unverified. This site does not repeat it.
The bloom at the top
The memory above the maze needs a Weaver Bloom carried to the top of the tower. Holding the flower through a warp did not deliver it, according to the player who tried. No developer reply in the sources I checked spells out the working carry. Until that is confirmed, the honest state is: the maze rule is known, the bloom requirement is known, the carry method is not.
Do not confuse this bloom with the one in the final laser crate. That later bloom is picked up and Unbound. A developer confirmed that one. It is a different room.
Show a stronger hint
Trace from the bottom star or symbol and leave the pad. Do not stop when a digit display fills.
Show the sourced solution
Maze, not a number. Start at the bottom and trace until you exit the keypad. The top memory wants a Weaver Bloom. The working way to get the bloom up the tower is not confirmed in a primary source, so it is not written here.
