[xiphias2]

What you wrote is all correct. Just don’t confuse creating the transaction and adding to the network (which is relatively expensive) with verifying (which is cheap, an SHA-256 hash can be computed in 2 days by a human with pen and paper, and for verifying the transaction you need an exponentiation on an elliptic curve, which is still efficient, though slower).

[zepto]

Sure, but a transaction cannot be verified without first being part of a mined block.

So paying the cost of mining is a prerequisite for verification.

You can definitely separate out the costs, but it’s misleading to imply that mining isn’t a requirement and that you also have to pay that cost first.

And a statement like this…

> The mining is not needed at all for verifying transactions, it is used to secure the network and to create new block of transactions.

…isn’t correct - mining is needed for verification. You cannot have verification of new transactions without mining.