BitcoinLib may be a good choice. Plenty of examples out there are capable to help you get the hang of it.

Here is the link: https://github.com/1200wd/bitcoinlib

It's possible that the IP address range assigned by Internet provider B is flagged by bitnodes. io or other services due to previous activity or network behavior. This could result in your network being subject to additional scrutiny or review. If so, you need to contact Internet provider B's customer support.

Hope this topic can help you: https://bitcointalk.org/index.php?topic=5405946.0

Is the wallet file you are attempting to open compatible with the version of Bitcoin Core you are using? Is there sufficient disk space available where the Bitcoin Core data directory and wallet files are stored?

BitMaxz has provided a great explanation. For question 4, one additional point to consider is an older GitHub page that might be helpful to you:
https://github.com/BitcoinPHP/BitcoinECDSA.php

BitcoinJS-lib is a JavaScript library for Bitcoin scripting and works both on Node.js and in web browsers.  It allows you to create, manipulate, and interpret Bitcoin transactions.  You can install it using npm with `npm install bitcoinjs-lib`. And here is the link: https://github.com/bitcoinjs/bitcoinjs-lib

Hope this is helpful.

nc50lc has already provided a great answer to your question. I just wanted to add that the official Bitcoin Core documentation offers comprehensive insights into commands, usage, and wallet management. You can access it here: https://bitcoincore.org/en/doc/

Do you mean that some desktop environments or file managers maintain a list of recently accessed files? I usually ensure proper data wiping using tools to securely delete files and overwrite the data multiple times to prevent forensic recovery. And maybe you can consider running it in a more controlled or isolated environment, like a virtual machine or container, to contain its activity. During the learning process, corrections and guidance are always welcome.

You need to communicate with the founders or administrators of the private blockchain network and work within the rules and permissions they have set. Or,  if you can become a node operator within the private blockchain network, you may have the ability to participate in the consensus process and mine blocks. 

https://www.wireshark.org/docs/man-pages/wireshark-filter.html
https://www.wireshark.org/docs/dfref/b/bitcoin.html

I don't know much about it, but I've seen websites about it before from other sources. I hope this can help you.

Thank you all for your valuable insights and assistance. I plan to take the next few days to explore refurbished laptops online, based on the advice you've provided. Once again, a big thank you to each one of you for your help!

That's the reason to seek out trustworthy refurbishers and assess the device's initial build quality. Reputable refurbishers go the extra mile by either replacing or refurbishing essential components, ensuring the device functions well and enjoys an extended lifespan.

Then another important question arises: how can one identify a reliable refurbisher?

You're absolutely right, this kind of business with refurbished business laptops is quite common worldwide. While affordability and durability are key advantages, ensuring the security of these devices remains a crucial consideration for me.

Non-technical-user-friendly, sounds interesting. This approach simplifies the process of setting up and maintaining a Bitcoin node on a Mac, making it more accessible to a wider audience.

Your response broadened my perspective on this issue, and I appreciate your suggestion. It's indeed worth considering purchasing a used laptop with a suitable SSD, and your detailed considerations provide valuable guidance. Thank you for your helpful input!

BIP32 is the Bitcoin Improvement Proposal that introduced HD wallets. This document is highly technical but contains detailed information on the structure and functioning of HD wallets.

Here is the link: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki

I extend my heartfelt gratitude to all those who take the time to offer their assistance and insights.

Are there some recommended approaches for running Bitcoin Core on a laptop with constrained storage capacity? Is it possible to use an external hard drive as the data directory (datadir)? How does this setup work, and would I need to pay attention to?

Thank you in advance to everyone who responds to this question.

Recommend to test it by trying to access .onion websites with the Tor Browser to ensure that Tor itself is working first.

Is there any practical advantage in generating a hardened child key from an unhardened parent key within the framework of BIP32? For instance, are there real-world scenarios or applications where this specific key derivation approach is beneficial or commonly utilized? Apologies in advance if this is a silly question.