In comments Aaron asked about an example of Kevin's construction. In Kevin's comment the rational points come from the group law on the elliptic curve and $D$ is the lcm of the denominators. An example with $10$ points will be with so large $m,n$ it will be practically unreadable on MO, so here is magma online code and example with $6$ points. Starting with the OP $m,n=1370,2210$ got a Weierstrass model of EC. Found $4$ generators with mwrank and worked with the first generator $P$ (could have used some of the OP points instead of finding generators). $P$ and $2P$ gave two additional solutions to the OP and here is the result: D= 7061463496178454923796024335945506461398736716739985 m= 68314045389769361590347449258049778039693974321579389848056766335112029004282345656156971656752753986308250 n= 110200029424372473806326907197291977713666922080795950046865294598976338758732834963581684205418676138497250 x1= 7061463496178454923796024335945506461398736716739985 x2= 162413660412104463247308559726746648612170944485019655 x3= 261274149358602832180452900429983739071753258519379445 x4= 204782441389175192790084705742419687380563364785459565 x5= 21151048023226761412428898157420887062515978056922795 x6= 35141206529629391701793045456458600088792043478723117 [Magma online code](http://magma.maths.usyd.edu.au/calc/) m:=1370; n:=2210; aa<x,y,z>:=AffineSpace(Rationals(),3); C:=Curve(aa,[m-x^2-y^2,n-x^2-z^2]); P:=C!([1,37,47]); pc:=ProjectiveClosure(C); E,m1:=EllipticCurve(pc,pc!(P)); m2:=Inverse(m1); aInvariants(E); Ep:=E!([-323231734744697104/27633477663066497041,585299700649024 /27633477663066497041]); m2(Ep); m2(2*Ep);