Block
A batch of transactions added to the blockchain at one time, together with a header containing, among other things, the hash of the previous block, a timestamp and a summary hash (Merkle root) of the transactions included. The block height is its sequential position in the chain.
Related
Essays
- The Magic of Flash Loans (Part 2): The Next Octave
“Wallets and apps send them straight to a small number of specialised companies called builders, the ones who assemble the blocks that make up the ledger.”
- The Magic of Flash Loans (Part 1): Capital Was Never the Constraint
“The barrier does not disappear so much as move, and where it moves to is worth watching: who sees the opportunity first, who can get their transaction into the block on the right terms, who can act without broadcasting their intention into a public mempool, who sits closer to the network, who has built the better machine.”
- Two Sweeps Pointed at the Same Address
“How many blocks to cover, what to pay for each attempt, whether to stay private or go loud: those were the real decisions, there was no time to work through them properly, and I did not have the repetitions behind me to make them fast.”
- Achilles Catches the Tortoise Where It Has to Stop
“A blockchain is still block after block, transaction after transaction.”
- A Powerful Tool Will Not Save You
“My very first case was solved with nothing but a block explorer and a pencil.”
- What a USDT Recovery Actually Looks Like
“For this specific step, cross-check on a block explorer (or USDTBanList) that reads the contract state directly, or you will think the money is still sitting there when it is already gone.”
- Guess Who? (On-chain)
“Then I took each one to OpenSea (EVMs) or Magic Eden (Solana) to read its collections, and to open block explorers to see every NFT it had ever touched, even the ones held for a single day, even inside a narrow window.”