Glossary
Archive node
A node that stores all historical states of a blockchain between blocks.
ASTR
The native token of Astar. Used for dApp staking.
Ask!
An embedded domain-specific language (eDSL) for writing smart contracts based on AssemblyScript.
Bridge
A mechanism that allows the transfer of assets or data between two different blockchain networks.
Collator
A node that maintains a parachain by collecting parachain transactions and producing state transition proofs for the validators.
Cross-chain
Ability of different blockchain networks to communicate and exchange data or assets with each other, allowing for interoperability and enhancing the functionality and scalability of blockchain ecosystems.
DAO
Short for Decentralized Autonomous Organization, a blockchain-based organization that allows for decentralized decision-making and management by its members.
DApp
A generic term for a decentralized application, that is, one that runs as part of a distributed network as opposed to being run on a specific system or set of systems.
Data Availability
Often abbreviated to DA, Data Availability refers to a component of modular blockchains that handles off-chain storage of ephemeral-type data that is referenced rarely, though for which availability needs to be guaranteed for historical reference and security purposes. Data Availability systems are highly specialized to provide resilient data storage for sovereign rollups and layer 1 networks.
EVM
Short for Ethereum Virtual Machine. A software environment that executes smart contracts on the Ethereum compatible blockchain networks.
Existential Deposit
The minimum amount of a native token required for an account to exist. If at any point in time the balance drops below the existential deposit amount, it is reaped (balance set to zero) to prevent long-term network bloat.
H160
An Ethereum format address for Substrate-based blockchains.
HRMP
Short for Horizontal Relay-routed Message Passing. A precursor to the complete XCMP implementation, that mimics the same interface and semantics of XCMP. The plan is to retire HRMP once the implementation of XCMP is complete.
Ink!
An embedded domain-specific language (eDSL) for writing smart contracts based on Rust.
Layer 1
The underlying infrastructure of a blockchain network, which includes the block production mechanism, the data structure, and the rules for validating transactions.
Layer 2
Programs built on top of layer 1 such as smart contracts or solutions to improve scalability, reduce transaction costs, and enhance the functionality of the blockchain network.