Continuing on my education in cryptography and Bitcoin I'm learning today that while Elliptical Curve Cryptography (aka Elliptic Curve Digital Signature Algorithm or ECDSA) using a specific curve being 'secp256k1'. In a coding script like Python or whatever you're into you could use libraries and functions to create a set of keys, use them to verify a string or in BTC a transaction. In our coding script we could then verify that our message or transaction was created using using a private key associated with the public key. If the mathematics being carried out in these functions and libraries checks out then we can say our message or transaction has been signed by a (secret) private key mathematically proven to belong to an associated public key - publicly available to an end user. In this way the maths and code behind a BTC transaction allows us to sign a transaction without revealing out secret key (which gives us ownership over it) while allowing the person we are sending BTC (value) to can see that it was indeed the key associated with that private key which signed the transaction and hence gives the user assurance that the transaction was legitimate. At least this is my understanding so far... #studyBitcoin and the journey continues. makes me wonder is this what Nodes are actually checking when they run consensus rules against blocks mined by miners to be added to the time chain? Guess Ill find out soon enough. #plebchain #coffeechain #bitcoin #nostr #grownostr #alwayslearning

Study Bitcoin: Cryptography Bitcoin utilises Elliptical Curve Cryptography (ECDSA) which is a branch of mathematics where only addition and multiplication are allowed. Assuming that's cos any strings encrypted would be too easy to figure out with subtraction and division included. This form of cryptography produces a proof that the person who signed a transaction in Bitcoin knew the private key without showing everyone the private key itself. Importantly anyone else who has your public key can check that it was created by the matching private key. Yet to figure out how but guessing running a Node is the answer there. This cryptography allows us to send BTC transactions while also being the only one who can spend it AND allowing the person we are sending value to to check if we actually had the private key (ie correct authority) to send it. The learning continues with Andreas Antonopolous - #studybitcoin #bitcoin #plebchain #coffeechain

ECB is cutting as well as other banks. Will be see a crash before a v shaped recovery in BTC soon? Suspect it could be true. Whatever happens, save your excess money in Bitcoin, stay productive. Stay humble. Share the love. Navigate thee world as you will but dont let it rest on your soul. Went a bit off script there at the end! #macro #bitcoin #studybitcoin #studymacro

I'm preaching to the quire on Nostr with this video but always interesting to hear imo. Find the signal in the noise. Buy Bitcoin and avoid shitcoins. Stack sats and stay humble. #bitcoin #swan #nostr #plebchain #coffeechain

#meme #bitcoin #plebchain #coffeechain #btc #nostr

Study Bitcoin: what is important to know here is that what gives this method so much utility is that a public key can be used to encrypt a message, but the corresponding private key is required to decrypt that message.

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CS120: Bitcoin for Developers I | Saylor Academy | Saylor Academy

#studybitcoin #introductions #bitcoin

I like this as inspiration for Nostr Clients #nostr #grownostr #nostrdevs