Why do you care so much? 8 Connections means that you probably have 8 outgoing connections which is the maximum number of outgoing connections you can have. If people don't connect to your node, then you won't have any incoming connections. I myself, with Bitcoin Core, rarely have more than 8 connections even though I have upnp enabled and have port forwarding enabled.

Your private key is incorrect. It should be start with a '9' or a 'c' and be 51-52 characters long. Where did you get the private keys?

Open electrum and go to File > Open wallet (something like that) and then select that wallet file and it should open it.

Your command for signrawtransaction is wrong. The developer docs and this page https://en.bitcoin.it/wiki/Raw_Transactions#signrawtransaction_.3Chex_string.3E_.5B.7B.22txid.22:txid.2C.22vout.22:n.2C.22scriptPubKey.22:hex.7D.2C....5D_.5B.3Cprivatekey1.3E.2C....5D_.5Bsighash.3D.22ALL.22.5DD should help.

What is a public bitcoin server? I've never heard of one before since Bitcoin doesn't use public servers, or connects to other peers.

Why do you need 40Gb? Well you don't, if you don't want security. The point of having the whole blockchain is to have security so that you don't need to trust anyone else to provide you the right data. You need it to independently verify everything.

As for the rest, about the databases and shutting down, it takes a while because the entire bitcoin blockchain needs to be scanned to build the databases. It only takes a while the first time. Shutting down needs to wait for bitcoin core to close properly do they it does not screw up the blockchain databases.

It is not just the wallet, it is built into the bitcoin protocol itself.

This is quite normal. It can usually take a several hours. Just let it run and after a few hours it should be fine and ready to use.

You can find signature campaigns in the services section. This thread: https://bitcointalk.org/index.php?topic=615953.0 is a list of the signature campaigns and also compares them.

To join, most signature campaign threads will tell you how to enroll. Most of the time it is to post your username, bitcoin address, and post count. However please be sure to read the Op to get the full time and terms and instructions for joining.

Please remember that having a signature ad does not mean you can spam and will get paid for it. If you are caught spamming you will likely be banned from the forum. Please post constructively and on topic to previous posts, not just responding to the Op. And if what you have to say has already been said in the thread, do not post with the same thing, we don't need the same thing repeated over and over again.

Actually, I don't think it would be very hard to do that on the actual testnet. The total hashrate on the testnet of only a few THs. You could get a few miners and essentially take over the mining on the testnet.

And then they won't be able to spend then once the testnet is reset. This has already happened twice in the past. We are already on the third version of the testnet. The point of the testnet is for testing only, not for actually trading and actually having value. It is for technical  development without actually wasting money. No one will care if you lose a free testnet bitcoins while testing something, but you will definitely care if you lose a few mainnet bitcoins due to a faulty program that you are testing.

Here is a good testnet faucet: http://tpfaucet.appspot.com

In the past the memory requirements have increased due to the amount of transactions that we have been having. Recent spam attacks have not been helping at all.

Find the data directory and put the wallet.dat file in there. Use this for reference: https://en.bitcoin.it/wiki/Data_directory. It should be the same as Bitcoin's but instead of the directory being named Bitcoin, it will be named Litecoin.

BTW, this belongs in altcoins. I will report it.

The only other thing I can think of here is hardware error. Since Bitcoin Core is very hardware intensive, you could have a hardware failure somewhere. Try running some hardware diagnostics. You should be able to access them from the BIOS.

Also, check that you disabled all of the antivirus software. Not just the one you installed but also Windows Defender which comes with all new versions of windows AFAIK.

The problem is from these lines. Bitcoin Core cannot read one of the blk files, which is probably corrupted. Do you have any antivirus that is running that could be accessing those files at the same time that Bitcoin Core is reading them? Try disabling and adding the data directory as an exception to any antivirus that you currently have running.

Raspnode is NOT A LIGHTWEIGHT node. The raspberry pi 2 is a lightweight server, but the server software itself is still Bitcoin Core so it is not lightweight.

We need more information. What are the commands you are using to start it? How are you connected to the node?

That is correct. In order to spend the coins, you need the redeem script which is the script which is hashed to create the address. It is also what the signatures are validated against in order to spend the Bitcoin at that address.

You have a block corruption problem. Find the data directory and delete the blocks and chainstate directory inside of it. It will force a complete resync of Bitcoin core. You will need to wait a few hours for it to finish. That should fix your problem.

What kind of wallet? Different wallets are compiled differently. Are you talking about the bitcoin-qt fork for altcoins? That has the instructions inside the source on github, usually called build-unix which will help you build things on linux and thus the raspberry pi.

No, even though you have lurked here for many years, you are not actively participating in the community. You have posted very little and have not been very active in contributing to discussions here. The point of activity and the ranks is to show how active the user has been in posting and contributing discussions to the forum. You are not contributing if you are only reading, that is called leeching since you are only taking in information and not giving back out any.

Regarding ranking up based on time browsing and IP, again see above. Also, using cookies for that or logging ips will not work since people don't have static ips and multiple people will many times be using the same IP address. That just will not work.

No, that is the transaction fee, which is paid to the miner that includes your transaction in a block. It is an incentive for the miners to include the transaction so that it confirms faster.

First of all, what you linked to are not transactions but addresses. They are different, but in this case, it doesn't really matter.

What I see is that you are confused by the change addresses. It is bad practice to follow your balance on any block explorer due to change addresses. What most wallets do is that for each transaction the change is sent to another address generated by the wallet which is still in the wallet and still in your control. This is to prevent address reuse which is generally not recommended. So the Bitcoin that you see in blockchain.info going to another address is most likely the change. And the balance you saw in your wallet was correct since it included the change. And the change and whatever was left in that address was sent to mycelium when you emptied the wallet.

As you can see in this transaction: https://blockchain.info/tx/c708e9d51ddd78b55e71e3fe7d5d352d3c7815eedfd2098348df49d26376f313, the three addresses you are concerned about, yours, and two change addresses, are all apart of that transaction which is sending all of the bitcoin to another address, your mycelium. This means that the same person (you) owns the three private keys for those three addresses, so those two extra addresses you don't recognize are your change.