Ideas in this flowchart

• Bitcoin transaction settlement requires block inclusion and consensus confirmation.
• Broadcasting a transaction does not fully settle it.
• Settlement requires the network to include the transaction in a block and confirm that block through consensus.
• Two blocks are discovered at nearly the same time.
• The network continues building on one chain.
• The other block is treated as an orphaned block.
• Transactions missing from the accepted chain must be processed again.
• Additional blocks make the transaction record increasingly reliable.
• Bitcoin delays a winning miner's ability to spend its reward until many more blocks have been added.