Bred by Carlos Dos Santos, Ethereum is a daughter of the Pioneerof the Nile horse Courtier. A Grade 2-placed listed stakes winner on turf in the United States, Courtier entered stud at Brazil’s Haras São José da Serra in 2016. He is well on his way to notching his third consecutive top-10 finish among Brazilian general sires (he is currently 5th on the list), which is perhaps not surprising considering that his third dam, 1993 French champion juvenile filly Coup de Genie, is a full sister to 1989 French champion juvenile male and highly successful European sire Machiavellian. Further back, this is the family of Northern Dancer, Halo, and Danehill, who all need no introduction as sires.
Ethereum was produced from 2016 Grande Prêmio Francisco Villela de Paula Machado (BRZ-G2) winner Etapa Vencida, whose late sire Wild Event (winner of the 1999 Early Times Turf Classic Stakes, USA-G1) has notched six Brazilian broodmare sire titles to go with his three Brazilian general sire titles and is atop the 2024/25 broodmare sire list by a wide margin. A five-time winner of the Mossoró Trophy as Brazil’s Stallion of the Year, Wild Event is a Wild Again half brother to 1994 American champion turf male Paradise Creek (by Irish River) and 2001 Manhattan Handicap (USA-G1) winner Forbidden Apple (by Pleasant Colony) and so had all the credentials one could want for stud service in a country where almost all the important races take place on turf and the stamina to run 2000 to 2400 meters (about 1¼ to 1½ miles) is still at a premium.
A full sister to Brazilian Group 3 winners Mrs. Boss and Aspiración (dam of listed Brazilian stakes winner Gone Hollywood, by Bal a Bali), Etapa Vencida is out of the winner Lychee, whose sire De Quest (by Rainbow Quest) won the 1995 Prix Conseil de Paris (FR-G2) before being exported to Brazil for stallion duty. Lychee is a half sister to Infini (by Dynaformer), dam of 2005 Grande Prêmio Juliano Martins (BRZ-G1) winner Parfum Parfait (by Clackson) and 2009 Grande Prêmio Mario de Azevedo Ribeiro (BRZ-G3) winner Taos (by Signal Tap) and second dam of 2024 Grande Prêmio Marques de Almirante Tamandare (BRZ-G2) winner Nudini (by Drosselmeyer). Lychee is also a half sister to Quantia Exata (by Trempolino), dam of 2014/15 Brazilian champion 3-year-old filly Cruiseliner (by Wild Event), and to Voltagem Alta (by Wild Event), dam of 2018/19 Uruguayan champion 2-year-old male Alto Voltage (by the Pulpit horse Ecclesiastic).
Ex Facto (by Known Fact), the dam of Lychee and her siblings, was a winner in the United States and served as a broodmare in both Brazil and Uruguay. She was produced from the sprint stakes winner Premier Princess (by Exclusive Native), whose dam, Foresight Princess (by Reviewer), produced two other stakes winners and was a daughter of the Phipps family foundation mare Lady Be Good. It took a few generations for the latent power of this branch of Lady Be Good’s family to kick in, but it has served Brazilian breeding well and, if Ethereum continues her winning ways, may soon have another championship title to add to an already excellent record.