The Ethereum Virtual Machine, which executes Ethereum contract bytecode according to shared rules.
A developer ports an EVM contract to another chain, then checks that chain’s configuration and dependencies before deploying it.
A public key plus derivation information that can generate eligible non-hardened descendant public keys.
Your accounting dashboard tracks addresses derived from your xpub without getting signing keys; it still sees more than one payment address.
An Ethereum account whose transactions are authorized by a private key, often abbreviated EOA.
A wallet’s key signs a transfer from your EOA; the receiving contract then follows its own code when that transaction calls it.
A service that distributes small amounts of test-network assets for development.
A transaction fee stated per unit of transaction size or weight-derived size.
"Same fee rate, different total fee?" Your Bitcoin transaction's virtual size also affects the satoshi amount it pays.
A configured trading-fee level used by a pool or exchange mechanism.
A router selects a higher-fee pool because its deeper liquidity gives your particular swap a better overall output.
A stablecoin that uses fiat-denominated reserves to support its target value.
You send a dollar stablecoin to another wallet while its issuer holds the supporting cash and reserve instruments offchain.
The degree of assurance that an accepted transaction or block will not be replaced.
An exchange shows your transfer as detected first, then credits it after the confirmation or finalization conditions it requires are met.
The rule a node uses to select its preferred chain when multiple valid branches exist.
Two valid blocks compete briefly, and nodes apply their chain’s fork-choice rule to decide which history to extend.
Using mathematical methods to check whether software satisfies explicitly stated properties.
You specify that a transfer must preserve total supply, then use a verifier to check that property under the model's assumptions.