Verification (proof)
Verification is an independent record that a specific prediction existed in a specific form before the event started.
In plain English
The point is ordering in time. Anyone can describe a bet afterwards; a verification record establishes that the claim predates the result, which is what makes a published history evidence rather than testimony.
Example
A proof link recorded before kickoff, retrievable afterwards to confirm what was claimed and when.
Why it matters
Without pre-event proof, every historical record depends on trusting the person publishing it.
How V8 uses this term
V8 publishes proof links for its official picks and keeps losing picks in the record permanently.