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how does node validate scriptSig

Let’s say I sent some BTC to Bob, so I created a transaction (forget about scriptPubKey) since let’s say I was able to prove it by executing scriptPubKey. so After I sent BTC to BOB, new transaction’s input looks like this:

in: [   {      "prev_out": {         "hash": txId,         "n": 0      },      scriptSig:"3045....e5f5"   } ], 

Now, this scriptSig exists because when other nodes come and see this, they should be able to validate it. Now, all we have here is the signature , public key (mine), txId(output transaction that I used).

How can another Node which got this transaction validate it ?

You might say: he will see signature + public key of yours. so what will it do to validate it ? if you say that it will try to decrypt signature with public key, that’s not enough. Because what I could do is encrypt blablabla string my private key and I’d put that signature there.

So I guess, my question relates to: how Node will prove I proved that I had BTC with scriptSig + txId ?

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#shelovessavie #TheSupremeTeam
Artist Name: shelovessavie

Who are you?

willing to create whatever vibe i’m in and learn to better my craft

Where are you from?

i grew up mostly in miami then moved to broward. both areas are heavily dominated by rap music. shout out klassmoney for getting me into music fr

How can we follow you?

instagram: @shelovessavie
twitter: @percseller
youtube: shelovessavie
soundcloud: shelovessavie / shelovessavie archive

Song Title: 30 Ball

Listen to shelovessavie:

https://soundcloud.app.goo.gl/WHoxYB48Ze4YfdNt7

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how does node validate scriptSig

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