Questions on: transaction-verification

This might only be an issue with the terminology, but when a transaction is "mined", it is included in a block. You could do that of course, if you were contributing blocks to the Bitcoin network, but the computing power of the network has grown to l
When a mining pool or solo miner releases a block to peers, each peer running Bitcoin-Qt/bitcoind will verify the transactions in the block before relaying the block. The SHA256 block hash is the first thing verified. The SHA256 hash that identifies
I run a 0-confirmation tool. To track new transactions I use: bitcoind getrawmempool new transactions in new block not available in mempool (it seems I do not receive all transactions in mempool before my client accepts a new block) I trust my bitcoi
What happens if I don’t attach any fees to my bitcoin transaction? Before transactions get packaged into blocks and inserted into the blockchain they wait around in the transaction pool, also known as the memory pool (or mempool for short). Each tran
What is OptInRBF? OptInRBF is short for "Opt-in replace-by-fee", which was added to Bitcoin Core in 0. 12. 0
I am building my Bitcoin expertise, and want to verify my understanding on a specific point: at what point(s) do all full nodes verifies a new transaction? Here is my understanding in a nutshell, please confirm or correct: [1] Upon receiving each new
If there is a max transaction size it is much higher than 100 bytes. Not sure what that snippet is refering to but the average transaction is closer to ~300 bytes looking at the average # of transactions and block size for last 1000 blocks. What limi
A Bitcoin transaction can fail to confirm, or become “stuck,” for a number of reasons. Stuck transactions are usually confirmed after several days, but sometimes waiting isn't an option. Fortunately, many stuck transactions can be cleared using nothi
I understand that when I'm doing a transaction, I'm locking those bitcoins to whoever provide the solution to a script that has the hash I posted. But, where does the hash get written? I would assume that it is not in the blockchain, since this payme