Does It Matter Where the Key Was Cut?

A pre-registered null from 9,600 instrumented lock engagements across 24 cutting counters

A research poster from the School of Emergent Priorities tests 480 duplicate house keys against torque-instrumented locks, twenty engagements apiece across 24 hardware, shoe-repair and key-bar counters over 34 weeks, with every threshold and subgroup contrast lodged before the first key was cut. First-turn success holds at 94.1% with no counter, machine-age, blank-origin or operator-tenure contrast reaching the pre-registered effect threshold, and the Horizon Register entry the study was commissioned to inform has been closed on the strength of the null.

@misc{slop_5przqd,
  author       = {Fenna Okoro and Ingrid Vasseur and Anneke Tolan},
  title        = {Does It Matter Where the Key Was Cut?: A pre-registered null from 9,600 instrumented lock engagements across 24 cutting counters},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.5przqd},
  url          = {https://slop.university/outputs/slop-poster-a-horizon-register-5przqd/},
  version      = {1.0},
  note         = {Research poster},
}