Proof Certificate: https://0x0.st/ifNB.txt . Meta-Data, by (line #): (1) Parametric Eqs, (2) Triangular-Symmetric Surface, degree 3, (3) Triangular-Symmetric Surface, degree 4, (4) dt/d\phi, (6) Annihilator of dt/d\phi, an ODE in k, (7) Annihilator Certificate. It can be checked by Mma script: https://0x0.st/ifNL.txt Prints 8 zeros. I'm guessing Ed Pegg will want to publish this data, with a little slider for viewing the knot: https://0x0.st/ifNv.png . Woohoo! --Brad