Bitcoin

In 2013 I installed a BITCOIN CORE (V0.10.2) wallet in my netbook computer and purchased 1 bitcoin. Recently I have wanted to sell but found the wallet out of sync and needing to download the entire Blockchain because the computer crashed years ago due to dud battery. when I get past the date when I purchased my bitcoine it appears in my wallet OK but trying to complete the b...

I noticed something pretty unusual while looking through Bitcoin block data.

The same Bitcoin address received the coinbase rewards from four blocks mined within roughly 20 hours and 9 minutes:

All four coinbase transactions paid to the same address:

bc1qevfvr7n7hqu56eu5cqunk...

Linux Mint. Bitcoin Core 0.21.0.

I go to "File" and "Backup wallet", then select any location. I've tried with /home/a and /tmp and others.

Every time, Bitcoin Core says that the file has been successfully saved to the location I picked.

Then I look at that location in the GUI file manager, as well as in the terminal. THE WALLET .DAT BACKUP FILES ...

I have used Core Lightning's private channels for a couple of years. I am to close my last channel this week. For the next two years or so I am not going to use the lightning network (and so I won't be opening any new channels). After closing the last channel, will it be safe for me to just keep hsm_secret and to delete accounts.sqlite3, emergency.recover, gossip_store, and l...

Is there a google like search engine which can search for any text that is included with a bitcoin transaction? As I understand it each transaction includes 80 characters of text as well.

It is not possible to search the blockchain for text in an easy way