Transactions are thought to be having occurred when they’re included in a brand new web page within the listing of all Bitcoin transactions.
Every web page within the listing is named a “block”. The listing itself is a transaction journal referred to as the Bitcoin “blockchain”.
Each Bitcoin pockets that works as Bitcoin’s inventor initially meant will speak to a couple close by wallets (or different “nodes” within the Bitcoin community) to seek out out about new unconfirmed transactions and new pages (blocks) within the transaction journal (blockchain). They every hold their very own copy of the entire listing from the start of Bitcoin in 2008. This course of is named “synchronising”.
Some wallets might discard previous blocks which might be not of curiosity. That is referred to as pruning. It is not actually related to your state of affairs but when I do not point out it, somebody might really feel the necessity to level this out.
By speaking with others on the community, a pockets might uncover that it lacks particulars of some latest transactions and let you know it’s “synchronising”.
Once you ask a pockets to pay somebody. the pockets creates a transaction we name an unconfirmed transaction. This is sort of a draft transaction.
The unconfirmed transaction is just thought to be having actually occurred when it’s added to a brand new web page (block) of the transaction listing (blockchain) by a miner. That is referred to as a affirmation of the transaction.
Till a pockets is synchronised, it could not learn about particulars of latest transactions and so might not but know the end result of latest transactions it has created.
