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the hash functions are robust, though collisions are a concern

But my greater concern is in regard to nonce detection

> the hash functions are robust, though collisions are a concern

you are more likely to be eaten alive by ants, than witness a sha-256 collision with today's hardware

> But my greater concern is in regard to nonce detection

what does this mean? nonces here are used to prevent duplicate transactions.

But probabilities are subjective, if you build your home on a anthill your scenario's probability increases

Nonces are used to find hashes that satisfy a specific 'target' requirement

>collisions are a concern

Could you elaborate? Probability of collisions should be very low.