have anybody found relationship between pvk 1
and new x coordinats
xcubed = 0x4866d6a5ab41ab2c6bcc57ccd3735da5f16f80a548e5e20a44e4e9b8118c26eb
x1 = 0xc994b69768832bcbff5e9ab39ae8d1d3763bbf1e531bed98fe51de5ee84f50fb
x2 = 0xbcace2e99da01887ab0102b696902325872844067f15e98da7bba04400b88fcb
x3 = 0x79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
?