Thursday, January 15, 2026

Bitcoin arithmetic, image definitions, from non-public key to public tackle

(Observe, please see EDIT beneath.)
I title this with “arithmetic” as a result of “arithmetic” is an abstraction for arithmetic and a mathematical perform will be damaged down into arithmetic. I want the arithmetic.

The highest stage query / purpose: I’m making an attempt to know the arithmetic in how a personal secret’s translated right into a public key. Presume my pockets has generated a personal key for me. What are the steps the pockets (and/or the bitcoin nodes) use to create the general public key that it makes use of to deposit cash into?

I’ve discovered and browse a number of articles, however am not recognizing the steps. However earlier than going there, I must solidify the meanings of some symbols. Begin with this put up discovered from a search: What’s the math behind Bitcoin’s elliptic curve?

Q, okay I don’t know what these signify.

G from one other put up I discover this: “The generator level G, or a ECDSA public key, is a pair of coordinates x and y, for which the above equation holds.” I presume this imply some particular level on the curve, which consists of the x and y worth. Is that this right? What is meant by “generator level?”

n is a variable, typically that means repeat some operation this many occasions.

From different locations I discover these things together with what I think they imply. Please right me the place I’m mistaken.

X: higher case, the non-public key

x,y: decrease case a degree on the curve,

p: decrease case, the most important prime smaller than 2^^256

P: higher case, I don’t know

Thanks on your time and persistence.

Edit: discovered this web site: How do you get a Bitcoin Public Key from a Non-public Key

It seems to be fairly good. Appears to be like like G is our originating level on the ecliptic curve. Is that this right.

If is save my non-public key, on a thumb drive or some other place, and my chilly storage pockets (is {that a} right identify?) utterly fails, and I put my non-public key into a brand new pockets, will it be capable of entry all of the coin I put into the account utilized by my failed pockets?

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