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I understand that the public key q is generated by the point addition of g (some secp256 k1 constant) u times such that u is a big number (private key). This process can be simplified in this diagram below. Hence the formula follows q=u*j But why cant I use this diagram below and trace backRead more

I tried to make Umbrel run on Ubuntu 20.04 with the bitcoin core beeing preinstalled and synced. I made it run on two harddrives. First one is an SSD where the system runs on and second one is an HDD where I store blockchain data. Bitcoind is fully synced and in order to speed itRead more

I need to create an spfx extension to redirect the user to the home page if the user has not enough permission. But in the extension after the page loads it starts checking and after that it redirects him which takes around 6-7 secs which is a good significant amount of time. Can anyone suggestRead more

I am new to bitcoin development. I am going through documentation and researching to build below in the webwallet solution Create a HD Wallet which can assign addresses to subscribed users. BackUp / Restore HD wallet on a different machine for managing any risks. Allow user to withdraw funds as needed by processing a WithdrawalRead more

Tell me if there is any rule in the Search that can be used when finding all elements that match the value expression, i.e. if you wrote the word "Test", then the list item "Test1", "Test2" would also be shown? Only "Test", not "Test1" and "Test2"Read more

I’m working on a web application using Spring (Java and JPA + Hibernate) and I was wondering if there is a way of locking a MYSQL table and then when another web service (or even another thread from the same application) tries to read or write the locked table it waits for it to beRead more

in bip143 thet define a witness signature. In the first example there is a witness broken down witness 00 02 47304402203609e17b84f6a7d30c80bfa610b5b4542f32a8a0d5447a12fb1366d7f01cc44a0220573a954c4518331561406f90300e8f3358f51928d43c212a8caed02de67eebee01 21025476c2e83188368da1ff3e292e7acafcdb3566bb0ad253f62fc70f07aeee6357 this formatting doesn’t appear to be defined anywhere in this document? my question is specifically what is the entire second piece "21025476c2e83188368da1ff3e292e7acafcdb3566bb0ad253f62fc70f07aeee6357" the first part is the signature but what are the extraRead more

Does anybody know how to edit vertical alignment in a table in sharepoint? In the example below, Compare erstellen and Concur are aligned to the middle of the cell, but I want them aligned to the top of the cell. This is a simple option in Excel etc, but I can’t find out how toRead more

I’m having problems imaging the future of Bitcoin. Because people usually is with radical ideas like: bitcoin will be the new global currency, will kill the banks and fiat money etc. Is that a real thing? I don’t see it possible at all, even more, I think could be a big problem, banks right nowRead more

We initially setup ntlm authentication, in the interest of time. We realized that Chrome doesn’t work with ntlm. How can i seamlessly convert to kerberos without breaking anything?Read more