
What is the Bitcoin halving?
The Bitcoin halving is the protocol rule that cuts the block subsidy in half every 210,000 blocks — the next drop, 3.125 to 1.5625 BTC, is expected around 2028.
Blockchain explains the base layer in plain terms: how nodes agree on a shared record, what a block holds, how long confirmation takes, and where throughput limits originate. Comparisons between consensus designs are included. For developers, analysts and policy staff needing accuracy rather than a marketing summary.
How distributed ledgers reach agreement, what a block contains, when a transaction becomes final, and which guarantees a chain does not provide.

The Bitcoin halving is the protocol rule that cuts the block subsidy in half every 210,000 blocks — the next drop, 3.125 to 1.5625 BTC, is expected around 2028.

A 51% attack is what happens when one party commands most of a blockchain's power — it can rewrite recent history, but far less than headlines imply.

A block explorer is a free, public window onto any blockchain — here is how to read one safely, from search box to confirmation count.

A blockchain block is a container with two parts — a header of metadata and a list of transactions — and together those fields are what turn separate batches…

Block finality is the moment a blockchain payment stops being reversible — and it arrives on a different schedule for every chain.