Blog

News, guides and updates from XFasil.

What a written trading plan contains — markets, setups, risk, exits and reviews — and why writing it down matters.

What to record for each trade, which numbers to review, and how a journal reveals the mistakes you repeat.

How Arbitrum executes Ethereum transactions off-chain, settles them on Ethereum, and what the ARB token is for.

Optimism scales Ethereum as an optimistic rollup and offers its software as a shared stack for other networks.

Polygon started as an Ethereum scaling chain and moved to zero-knowledge technology and the POL token.

Deposit, borrow against collateral, liquidations and the AAVE token: a tour of one of DeFi's oldest lending protocols.

How Lido turns staked ETH into a transferable token, who runs the validators, and the trade-offs of liquid staking.

How Filecoin pays storage providers to keep data and proves that they actually store it.

Applications need fast queries over blockchain data. The Graph organises that work as an open network of indexers.