Given a Bitcoin address or a record of a transaction between two Bitcoin addresses and a website like blockr.io to explore it, is it possible to identify what online wallet service a Bitcoin address belongs […]

Is there a way to request the date of last transaction via API? I run a request to see balance of my addresses and need to request the date of the last transaction, how would […]

I have a Raspberry Pi with 925 MB of memory. Bitcoin Core, operating as a full node, uses between 600-900 MB. How can I reduce bitcoind‘s memory usage? I tried setting maxmempool to its minimum […]

Currently I’m reading a great book Mastering Bitcoin and the author on his first articles suggests to the reader build from the source Bitcoin Core environment and down load the whole blockchain ledger (about 60Gb) […]

EDIT 3 Bumping my VPS to 1GB of physical RAM stopped the crashing issue… UNTIL said VPS ran out of disc space. I added prune=10240 to my ~/.Bitcoin/bitcoin.conf file such that the blockchain file would […]

Is there any help/tutorial on how to build the Merkle root from stratum data? The Slushpool’s stratum protocol has an example of a mining job but it does not contain any Merkle branches and I […]

I followed this instructions https://github.com/Bitcoin/bitcoin/blob/master/doc/gitian-building.md but on this step: https://github.com/bitcoin/bitcoin/blob/master/doc/gitian-building.md#setting-up-the-gitian-image i have got an error: cp: cannot stat ‘base-trusty-amd64-bootstrap/usr/lib/x86_64-linux-gnu/lxc/lxc-init’: No such file or directory debian@debian:~/gitian-builder$ How to fix it?

I installed the Electrum 2.7.9 wallet and it never went through the password and seed setup. I ended up with a default standard wallet. I then uninstalled the Electrum wallet and then reinstalled it. Once […]

I am looking for a API function as the first version of the API blockchain.info (no API key). If there are none, I’d like you to tell me where to turn to create an API […]

Can someone who is looking at the blockchain detect that 2 or more addresses generated by a single HD wallet are actually generated by that single seed/HD wallet ? Can someone who does know that […]