Written IDs should exclude certain letters for clarity.

I and L resemble 1, D and O resemble 0, S resembles 5, Z resembles 2. For the purposes of these notes, these letters will be skipped in alphabetic ID sequences. Older notes will possess the letter D since this realization had not yet occurred. U will also be skipped in favor of V. This is inspired by Crawford’s base 32 0G1C3B2A. G will also be ommitted for 6.