Glossary
This glossary explains key concepts of the Hyli blockchain, a high-performance blockchain with built-in privacy.
It helps developers and curious readers understand the key terms that describe how proofs, transactions, and operations work in Hyli.
Each definition links to a related concept page for deeper technical details.
Base state
The base state is the state of an app before any operation occurs. See also: Transactions
Blob
A blob is a piece of provable information sent to Hyli for sequencing. It represents off-chain data that will later be proven and settled onchain. See also: Apps
Blob transaction
A transaction that includes a provable blob and is used for sequencing within Hyli’s pipeline. See also: Pipelined proving
Operation
An operation is an event that happens on an app. Each operation consists of two transactions: a blob transaction and a proof transaction. See also: Transactions
Proof transaction
A proof transaction contains a proof of a previously-submitted blob and is used for verification and settlement. See also: Transactions
Proof composition
The process of combining multiple proofs (e.g., from different proving systems) into a single proof. This enables interoperability and efficient verification across diverse proof frameworks. See also: Proof composition
Proof verification
The step where Hyli verifies submitted proofs before final settlement. This guarantees correctness and ensures that only valid operations update the blockchain state. See also: Transactions
Cross-contract composition
The ability to use and verify a contract’s proofs within other contracts, enabling modular and interoperable applications. See also: Proof composition
Timeout
A timeout is a defined window of time after which, if no proof transaction has been submitted, an operation fails. See also: Pipelined proving
Transaction
A transaction is a unit of communication sent to Hyli. There are two kinds: blob transactions and proof transactions. See also: Transactions
Scalability
Hyli achieves high throughput and low latency through off-chain execution and proof-based settlement, allowing Web2-like performance without sacrificing security. See also: Performance
Privacy proofs
Proofs can preserve privacy by verifying correctness without revealing the underlying data. This enables compliance-friendly and privacy-aware applications. See also: Proofs overview
Pipelined proving
A proving model that separates proof generation from application logic. This allows proof creation to run asynchronously while maintaining deterministic outcomes. See also: Proof composition
Zero-knowledge proof (ZKP)
A cryptographic proof that shows a statement is true without revealing the data behind it. Hyli supports multiple proof schemes, including Groth16, RISC Zero, Noir over Barretenberg, and SP1. See also: Proof systems
State settlement
The process of finalizing verified operations onchain. This guarantees that off-chain computations are securely reflected on the blockchain. See also: Settlement
Ecosystem
The network of tools, projects, and partners building with or integrating Hyli — from wallet providers to proof systems and SDKs. See also: Ecosystem
Developer quickstart
Resources for building your first app with Hyli, including SDKs, example repositories, and starter templates. See also: Getting started
Financial institution
A regulated entity such as a bank, payment service provider, asset manager, or licensed e-money institution that operates under financial regulatory frameworks. Hyli enables financial institutions to build private, compliant stablecoins and tokenized assets. See also: Partnerships
MiCA compliance
Markets in Crypto-Assets Regulation (MiCA) is the EU regulatory framework for digital assets, including stablecoins. Hyli's architecture enables MiCA compliance through selective disclosure and cryptographic privacy guarantees. See also: Identity for regulated finance
Private stablecoin
A digital currency pegged to a fiat currency (e.g., EUR, GBP) that provides transaction-level privacy while maintaining regulatory compliance through selective disclosure. Hyli enables licensed issuers to deploy private stablecoins with cryptographic guarantees. See also: Financial applications
Selective disclosure
A privacy model where different stakeholders see different levels of information. On Hyli, transaction parties see full details, the public sees only cryptographic proofs, and regulators can access complete information on request without public exposure. This solves the privacy-compliance dilemma. See also: Hyli vs. traditional blockchains
Tokenized asset
Real-world assets (such as private credit, securities, or real estate) represented as digital tokens on the blockchain. Hyli enables private tokenization with selective disclosure for institutional investors and regulators. See also: Financial applications