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How do I create a counter like bitqa.app uses that increases the “Answer: 0” count and stays?

I’m a programming noob trying to build a website using Money Button and BSV blockchain. I need help (or a visual of code) writing code that increases a number on the page after the Money Button is swiped. Just how “Answers: 0” gets increased by +1 on bitqa.app after paying. I hope $5 bounty for best answer is enough. Thanks in advance!

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What is Miner ID, how it works and what can it be used for?

There has been a lot of discussion going on about Miner ID lately. What is Miner ID and how does it work? Is it optional for miners to use and what would be their incentive for or against it?

Which cool new possibilities does it enable?

Note: Only answers that properly answer questions on BitQ&A will qualify for the bounty. Links to external resources are more than welcome, while answers with links only won’t qualify.

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Which will be the first BSV application that will catch mainstream adoption?

Now, this will obviously require some speculation, but why not. There are many exciting Bitcoin SV applications being released practically at a daily basis, but they are arguably mostly used by the (still small in grand scheme of things) BSV community.

I predict that at some point we’ll see one/some of those applications gain attention of the general public and take off - probably dragging the entire ecosystem with them.

If you could bet which (or what kind of) app that will be, what would you bet on?

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If transaction hashes only are stored in blocks, then where is OP_RETURN data stored?

An answer to a previous question and the whitepaper both agree that blocks don’t store full transactions, but rather, transaction hashes.

So then, what if I add data in OP_RETURN, say, the text “Hello, world!” Isn’t that a transaction output, or at least contained in an output, and therefore part of a transaction?

If not, or if so and only transaction hashes, not transactions themselves persist, then how does the OP_RETURN data stay on the blockchain?

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Provide examples of multi-sig scripts

What are the possible Bitcoin scripts to create a multi-sig transaction? Please provide the script code with explanations.

I would like to see at least two types of such scripts explained (OP_CHECKMULTISIG and the one with conditional OP_IF statements that Steve Shadders showed at this CoinGeek Seoul presentation). If there are more options, please list them as well.

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