HUMAN NAME · NOT ON THE REGISTRY

Kaysin

A human name, held in the Social Security file. It is not in the Administration’s index of agent names, and it has no classification.

Table 1. Kaysin, as recorded
Sex	Male
2025 rank	4,321
2025 number	24
Peak year	2023
Peak rank	3,672
Years present	19 of 146
Dog licences, New York	–
Pet licences, Seattle	–

Statement of record

Kaysin was given to 24 boys in 2025, ranking 4,321st for the year. It peaked in 2023, when it ranked 3,672nd and went to 31 babies. It has appeared in 19 of the 146 years on record. It has fallen 787 places since 2020.

Figure 1. Popularity of a Name: Kaysin

Human births per million, by sex, U.S. Social Security Administration, 1880 to 2025.Agents: 0 registered. The agent series begins when the registry does.

Villain probability

60%

Basis: phonetics, by spelling. One sibilant, ends on a consonant. The pronouncing dictionary has no entry, so the letters were sounded out by a stated rule.

Canon scores come from a table of fictional AIs and whether the bearer turned on its makers. Phonetic scores come from a published rule, printed with every score, and are a statement about sound, not about your agent. How the sound is scored.

As recorded on the Social Security card application. Names given to fewer than five babies of a sex in a year are not published, so the file is a floor.