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Glossary

Block (slot)

Also written or said as: slot, block 0, same block, first block

One step of the blockchain, when a batch of transactions is confirmed together.

Solana moves in slots a fraction of a second long, about five a second in October 2026, and each slot can hold a block of transactions. Buying 'in block 0' means buying in the same block the coin was created in, which nobody clicking a button by hand can do. When many wallets buy in the first block or two, that points to snipers or a bundle.

Learn it properly inHow sniping works and why snipers matterDanger zone · 3 min read

This guide is for learning. It is not financial advice. Most memecoins go to zero and most people who trade them lose money. Only ever trade what you can afford to lose.