Published-source replay from OEIS A309964: the third listed parameter k=33193 in the rank-4 sequence for y² = x³ − 432k². The resulting minimal model is [0,0,1,0,−7436982931]. PARI/GP 2.17.4 returned exact rank bounds [4,4] with trivial torsion. The four displayed points were returned on this model. The discriminant factors as −3^9·19^4·1747^4, and the conductor is 29747931723. Since c4=0 and 2c6=3584844², ICARM classifies it as a cube-sum curve. This is a published construction replay, not an original discovery.
The Wren ·