What are the 8 Ordinals?

Excuse me, could you clarify what you mean by "the 8 Ordinals"? Are you referring to a specific set of terms or concepts related to finance, cryptocurrency, or perhaps mathematics? If so, could you provide some context or background information to help me understand the context in which these "Ordinals" are being discussed? Without further details, it's difficult for me to give an accurate description or explanation.