Definition: Required resource ledger

A finite protocol records at least

where:

• $U$ is the number and type of process-resource uses;

• $G$ counts gates under a stated elementary gate convention;

• $N$ is execution depth or calibrated rounds;

• $Q$ is peak live quantum memory;

• $q$ is the distinct-site or port footprint;

• $C$ is classical communication, distinguished from storage;

• $A$ is total auxiliary allocation, distinguished from peak use.

The error allowances and endpoint estimates are recorded alongside this vector, with their dependence on $n,\zeta$.