I want to install a command line-only full node bitcoind on a mini PC with 4GB RAM and Ubuntu. What are the steps to do it and how can I check if it works? (I will post an answer myself, also as a reminder on how to set it up. I will refine the answer.)
The main program consists of a simple menu with two options: • Try to find nonces that can create hashes with at least a user-selected number of leading zeroes • Quit When the user chooses to start generating hashes, those calculations will continue until the user presses ctrl+c. • Once the user does press ctrl+c, […]
1) ledger: https://bitcoin.org/en/wallets/hardware/ledgernanos/ Variable validation – Payment validation features are provided by the software wallet you use with this device. 2) wasabi: https://bitcoin.org/en/wallets/desktop/windows/wasabi/ Centralized validation – This wallet relies on a centralized service by default. This means a third party must be trusted to not hide or simulate payments. 3) Simplified validation (SPV) – This […]
The Unix build notes do not show how to install version 4.8 apart from saying BerkeleyDB is required for the wallet. Ubuntu and Debian have their own libdb-dev and libdb++-dev packages, but these will install BerkeleyDB 5.1 or later. This will break binary wallet compatibility with the distributed executables, which are based on BerkeleyDB 4.8.If […]
I run bitcoind default wallet path.but ı request getballance from nodejs api return; UnhandledPromiseRejectionWarning: RpcError: Requested wallet does not exist or is not loaded I use createwallet rpc method, I created testwallet after I use loadwallet “testwallet” rpc method after that I use listwallets rpc method return json; [ “”, “testwallet” ] but when I […]
I am currently running a Bitcoin Core wallet 0.18.1. What do I need to do to update it to 0.19.0.1 version? Would be very grateful for instructions as I am relatively new to this.
Bitcoin Core’s RPC API call “getnewaddress” is documented here: https://bitcoincore.org/en/doc/0.18.0/rpc/wallet/getnewaddress/ It claims: Result: “address” (string) The new bitcoin address In other words, it is supposed to return an associative array containing only the element ‘address’ which is a string representing the new Bitcoin receive address. However, it actually returns just an “untitled” string without an […]
I am trying to research hash functions and I want to be able to use bitcoin’s mining outputs as hashes. I am curious about where the actual hex value of the data that generates that hash with a lot of zeroes is. So, this is what I want: the 80 byte input that gives a […]
i have trouble in using op_csv. The spending condition is not match to my expectation. FUNDING Redeem Script Hex: 03010040b27576a91451d2a5e04d25ceaa86e600a6ec34bd24431c675d88ac Redeem Script Asm: 03<010040> OP_CHECKSEQUENCEVERIFY OP_DROP OP_DUP OP_HASH160 14<51d2a5e04d25ceaa86e600a6ec34bd24431c675d> OP_EQUALVERIFY OP_CHECKSIG P2SH base85 address: 2NFRizqW8XpNQm7nxYvFpYTvYsy3BqgsEx2 (bitcoin testnet3) Based on my mentioned redeem script, i set time parameter as 1 along with OP_CHECKSEQUENCEVERIFY. Now my expectation […]
I’ve seen transactions with PkScripts as part of Inputs eg : Example of such a transaction Could anyone please explain how this PkScript is used ?