bips VS solidity

Some years ago, I saw a wallet called [Spark](https://sparkwallet.io/) that let you generate a QR-code to view in your Apple Wallet and Apple Watch Wallet. It was for receiving over lightning, not sending.

I guess with unified [BIP21](https://github.com/bitcoin/bips/blob/master/bip-0021.mediawi...) QR-codes, anyone can already add a RECEIVING wallet code to Apple Wallet today.

I don't think Apple want's to be the middle man in receiving Bitcoin payments though because “tainted” coins exist in the C-suite mind, and they would rather not receive and handle those.

But Jack Mallers recently told me he wants to integrate Apple Pay into [Strike](https://strike.me), so who knows, something similar will exist soon.

Anything you put elsewhere is not more secure, unless you are more secure than Apple's servers, which seems highly unlikely. If you don't have it, it can't get compromised.

The user has an iCloud account, you can write to iCloud storage without making them "sign in" to your app. It's their data, they can find it in the folder for your app in their iCloud drive on a Mac.

And see https://developer.apple.com/game-center/ for a way to let two users coordinate "play", multiplayer, turn based, achievements, etc., which cover most of the interaction you'd need.

For sharing personality test, a person can do their own and their partner's, but for a better take on the partner you and your partner can each take your own test then generate a sharable fun code that captures the "bits" of the answers without repeating the test. As partners, you could tell each other the sharable code as a NFC bump or QR code to scan, or generate one of the word based codes like bitcoin wallet passwords.

See BIP39: https://github.com/bitcoin/bips/blob/master/bip-0039.

(This passphrase would be short if the test results distill down to a smaller set of outcomes, like 64 questions give 8 results. It would be long if you need all 64 questions' answers to match with.)

Modern bitcoin addresses use a base-32 character set that leaves out some of the most ambiguous pairs and also permutes the address ordering so that the most visually similar remaining characters produce single bit errors which are better handled by the addresses error detecting (and potentially correcting) code.

https://github.com/bitcoin/bips/blob/master/bip-0173.mediawi...

Context: Bitcoin miners have just adopted a 50% pay cut for themselves. This pay cut was baked into Bitcoin protocol at the launch of the network (mostly, see "BIP 42" [1]). The OP link gives information about the block in which this pay cut was made.

I get that HN comments tend to dismiss Bitcoin. But the fact that for the fourth time this pay cut has happened without a hitch speaks volumes to what makes Bitcoin interesting: It's a rare combination of economic incentives and technology that keeps chugging. Nobody can stop it. And it's extremely resistant to change. It requires no governmental approval. All attempts at subversion or interference have failed. There aren't many things that come close to that kind of record.

[1] https://github.com/bitcoin/bips/blob/master/bip-0042.mediawi...

Bitcoin transactions involve locking funds in scripts, which can only be spent if those locking conditions are met. The part of the script that expresses these locking conditions are called ScriptPubKeys. On the other hand, the part that provides unlocking scripts to satisfy the locking conditions is referred to as ScriptSig for legacy transactions, and ScriptWitness for SegWit Transactions. These scripts are evaluated by a stack-based language called Script. This article will mainly focus on ScriptPubKeys.

Here’s the reference https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki

Solidity

Developer: Learn programming languages like Solidity (Ethereum) or Rust (Polkadot).

As blockchain smart contracts developer, efficiency and clarity in smart contract development are always my top priority. Solidity, the most popular programming language for Ethereum smart contracts, introduced custom errors in version 0.8.4 via revert function and make it available in solidity 0.8.26 via require and could be used only via via-ir pipeline. This feature allows to optimize gas and improve the readability of error messages. This article provides a comprehensive walkthrough of Solidity custom errors, their advantages, why it must be used, and implementation.

Let's build a web frontend to a smart contract! This is a followup to my previous post about creating a simple smart contract with Solidity and Hardhat. The instructions here assume you are picking up up with the same contract that we just deployed to our Hardhat environment.

In this post we'll create simple contract with the Solidity programming language that just increments a state variable and lets us get it's value. For me, the most compelling part of blockchain technology is the persistence of information that it offers. In smart contracts there are Local variables that are only used to store temporary data while the contract is doing something, and State variables that are persistent and store information forever. In our example today we'll create a contract that has a function that increments a counter state variable and also has a function to retrieve it's current value.

Have a basic understanding of Solidity.

Solidity Solidity emerged as the first-ever programming language for smart contracts and remains the most extensively utilized language in the Web3 space due to its first-mover advantage. It serves as the primary language for developing applications today on Ethereum and Ethereum Virtual Machine (EVM) compatible blockchains, including Binance Smart Chain and Tron.

40. Solidity - $72,656

Solidity - Smart contract programming language.