The BabyJubjub complete twisted Edwards curve.
This curve was defined by Barry Whitehat:
https://github.com/barryWhiteHat/baby_jubjub
From that repo:
It is the twisted Edwards curve 168700.x^2 + y^2 = 1 + 168696.x^2.y^2 of rational points over GF(21888242871839275222246405745257275088548364400416034343698204186575808495617)
That repo also shows that it satisfies the SafeCurves criteria.