How much does one transaction increase the size of the Bitcoin database?

Question

bitcoin

Actually a subject. Do I understand correctly that these transactions can be easily sent between nodes?
The second question, I heard that there is a plan to introduce a certain tax on transactions to prevent the possibility of spam on the network. Who and at what level should this tax be introduced? Is he still missing?

Answer 1

It seems that the transaction weighs around 1KB, but in general it can weigh differently. How much space it takes on disk storage depends on the database, perhaps some kind of compression is performed there ...
As for the commission, it is and has always been, this is the difference between the sum of the inputs and outputs of the transaction, it is pocketed by the miner, who includes this transaction in his block. Actually, this commission may be absent, its size is determined by the creator of the transaction, not the miner. Only here is one but. The miner may not include zero-fee transactions in his block. Generally speaking, the miner himself determines which transactions to include in the block and which not. This is one of the reasons why everyone is so afraid of the centralization of miners - after all, then they will be able to set any commissions, simply not including transactions whose commission is below the set bar in the block.

Answer 2

250-400 bytes on average