Been racking the brain forever, ubuntu noob, but wiped W7 for Ubuntu, updated and upgraded, checked out bfgminer and cgminer, both when running good .bat file with good pool, but they say no device? Adding […]

When run in daemon mode, bitcoind accepts a parameter -walletnotify=<cmd> which runs <cmd> whenever a wallet transaction changes due to sending/receiving. Is there a similar feature in Electrum? If not, how can it be simulated? […]

weird thing happened to me. I kept backup in cloud under Dropbox/bitcoinz. I can see many mbhd-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.zip.aes files, I also have wallet words but when I try to restore old wallet after fresh install on […]

I use the Blockchain.info receive payments API. It’s all working nice and good, but now I have a payment that doesn’t reach my adress. It is unconfirmed for almost 24 hours. Also, the payment doesn’t […]

I am running Bitcoin-qt on my server. I use .Net library to query it through windows services. It all works when I start bitcoin-qt manually. But if the server is restarted, I see that it […]

I am a beginner and just starting to explore the possibilities of Bitcoins. So I would be very grateful if somebody could help me with this question. Is there a risk that my Bitcoins are […]

What metrics can I use as indicators of the health of (a) a full Bitcoin node I am running and (b) the bitcoin network as a whole. Some examples I’ve considered: recency of last block […]

I have been writing a php file intended to create a Bitcoin private key and change it to wallet import format. The issue is when I try a command in a gnome-terminal such as: bitcoin-cli […]

I installed the bitcoind and started it as daemon. After 10hours I’ve tried “du -h” ubuntu@ip-172-31-37-93:~/.Bitcoin$ du -h 16K ./database 59M ./blocks/index 29G ./blocks 646M ./chainstate 30G . How to know if it synced or […]

Is there any Web API available for us to query Blockchain data in hex format? The format should follow the standard (https://en.Bitcoin.it/wiki/Block#Block_structure) structure rather than JSON.