The number and relation are the challenger’s claim about a stronger lower bound, upper bound, proof, correction, or reproduction.
Limits RegistryPublic challenge ledger
Disagreement, with receipts.
Every challenge starts as a proposal. This ledger shows what the community has put on the table, who put their name to it, and where editorial review stands.
3 total challenges0 accepted by editors
How to read this page
A ledger of proposed change.
This is a record of challenges people have submitted to the Registry. It shows what was proposed and where editorial review stands; it is not itself proof that a bound is correct.
Submitted and under review mean the proposal is still being assessed. Accepted means an editor approved it for the Registry’s public record.
Open a linked Limit to inspect the specification, evidence, and accepted Claims behind the current frontier.
2026-08-28
LR-001000 · alpha particle-electron mass ratio>= 7294.299 541 70 — Editorial example: challenge the reference-value scopeProposed by Limits Registry editorial desk
SUBMITTED2026-08-28
LR-001001 · alpha particle mass>= 6.644 657 3449e-27 — Editorial example: reproduce the mass measurementProposed by Limits Registry editorial desk
SUBMITTED2026-08-28
LR-001004 · alpha particle mass in u>= 4.001 506 179 128 — Editorial example: test the unit conversionProposed by Limits Registry editorial desk
SUBMITTED