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All entries A–Z · 5 / 15

438 · Articles and references

Blockchain fundamentals

Data availability

Participants need transaction data to reconstruct state and exit.

Wallets & security

Delegatecall authority

Delegatecall runs another contract's code in the caller's storage context.

Scam patterns

DNS hijacking

Domain records are changed so a real name resolves to attacker infrastructure.

Blockchain fundamentals

EIP-1559 base fees

Ethereum burns a protocol base fee that adjusts with block utilisation.

Wallets & security

ERC-20 allowances

An allowance lets a spender transfer tokens for an owner.