The $10,000 Gravity Challenge 2.0

"Gravity does not exist" - the claim that the measured downward force needs an explanation that is not mass-to-mass attraction.

Provide an alternative mechanism that accurately predicts the measured downward acceleration at any latitude, longitude and elevation on Earth - without using mass in any way. Mass cannot be hidden or obscured anywhere in the formula, directly or indirectly, and no constant may incorporate Earth's mass, the gravitational constant, or anything derived from the Earth's sphericity.

Both the published 'globe mechanism' (Newton's law + the centrifugal reduction from rotation + elevation referenced to the WGS84 ellipsoid) and the alternative mechanism predict the downward acceleration at 10 published IGSN 71 gravity stations (thousands exist worldwide; the values are public) and are compared. Official file carries a published SHA-256 checksum; Legit Challenge Framework v0.9b.

$10,000 in Bitcoin, in escrow - this time MCToon's own money (the original 2022 version was funded by a portion of the $100,000 the flat-earther 'Flat Out Hero' owes him). A single submission could win both challenges simultaneously.

The measured downward acceleration is not the same everywhere: it varies with latitude (rotation), elevation and local geology, and thousands of documented stations record it. Any alternative mechanism must reproduce all of that without mass. The globe mechanism does - with one 350-year-old equation.