Self-proving

verb (used with object), proved, proved or proven, proving.
1.
to establish the truth or genuineness of, as by evidence or argument:
to prove one’s claim.
2.
Law. to establish the authenticity or validity of (a will); probate.
3.
to give demonstration of by action.
4.
to subject to a test, experiment, comparison, analysis, or the like, to determine quality, amount, acceptability, characteristics, etc.:
to prove ore.
5.
to show (oneself) to have the character or ability expected of one, especially through one’s actions.
6.
Mathematics. to verify the correctness or validity of by mathematical demonstration or arithmetical proof.
7.
Also, proof. Printing. to take a trial impression of (type, a cut, etc.).
8.
to cause (dough) to rise to the necessary lightness.
9.
Archaic. to experience.
verb (used without object), proved, proved or proven, proving.
10.
to turn out:
The experiment proved to be successful.
11.
to be found by trial or experience to be:
His story proved false.
12.
(of dough) to rise to a specified lightness:
Leave covered until it has proved.
verb (mainly transitive) proves, proving, proved, proved, proven
1.
(may take a clause as object or an infinitive) to establish or demonstrate the truth or validity of; verify, esp by using an established sequence of procedures or statements
2.
to establish the quality of, esp by experiment or scientific analysis
3.
(law) to establish the validity and genuineness of (a will)
4.
to show (oneself) able or courageous
5.
(copula) to be found or shown (to be): this has proved useless, he proved to be invaluable
6.
(printing) to take a trial impression of (type, etc)
7.
(intransitive) (of dough) to rise in a warm place before baking
8.
(archaic) to undergo
In addition to the idiom beginning with prove