What is a Bitcoin block?A shared notebook helps explain how transactions form a block.
Watch ↗StarMiner · 12 videos
Visual explainers
Bitcoin concepts explained with paper, chalk and simple diagrams.
What is a Bitcoin block?
Watch ↗Original video in English
What is a hash?A digital fingerprint connects data to the mining process.
Watch ↗Why a blockchain?Each block refers to the fingerprint of the previous block.
Watch ↗Inside a Bitcoin blockTransactions, a reference to the previous block and mining data.
Watch ↗What do miners do?Miners repeatedly try numbers to find a valid block.
Watch ↗Why is it called mining?The digging is mathematical: repeated work to find a valid result.
Watch ↗Who checks the miners?Nodes check blocks against the Bitcoin network rules.
Watch ↗Proof of workA valid result demonstrates the work required by the network.
Watch ↗Why about ten minutes?Network difficulty helps keep the average block interval near ten minutes.
Watch ↗Where do fees go?Transaction fees form part of a valid block's mining reward.
Watch ↗Two blocks at onceCompeting blocks can briefly create two versions of the chain.
Watch ↗How many blocks each day?An average of about 144 blocks across the whole network.
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