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What will replace OP_CHECKLOCKTIMEVERIFY & OP_CHECKSEQUENCEVERIFY after the Genesis upgrade?

Since these two opcodes will be removed after Genesis and (from my understanding) nLockTime works in a slightly different way (prevents transaction from being included in a block vs. UTXO being locked until given time/block height), how will be possible to achieve same functionality after that?

Is it possible to build a locking/redeem script using other opcodes that achieves the same result? Or is there something else?

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How are Bitcoin blocks structured?

Bitcoin blockchain is made of individual blocks. I am wondering how do these blocks actually look like. Which different data types are part of them? What is each part of the block used for, what is its meaning and what are the possible values that can those values take?

I would also like to, assuming I am looking at a block’s HEX blob, be able to decode it/determine various parts of it.

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How to create a valid Bitcoin transaction?

If I want to create a Bitcoin transaction, which are the parts I should add to it? What is the meaning of each part and what are any special considerations that I should think of?

I would also like to, assuming I am looking at a transaction’s HEX blob, be able to decode it/determine various parts of it.

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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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