One chain, several layers of evidence
The chain tip and block subsidy are protocol facts once a block is accepted. The mempool is local: nodes may hear transactions in a different order or reject different low-fee transactions. Hashrate is estimated from block timing and difficulty, not measured from every mining machine.
Read freshness before precision
The dashboard keeps a last-good observation and shows when it was recorded. During a source outage, an older labelled value is more useful than a blank card—but it should not be mistaken for a new block.
Explore how Bitcoin works or inspect issuance in the supply and halving explorer.