Definition

Hashed Time-Locked Contract Expiry

Meaning ⎊ The termination of a swap contract when the required secret is not provided before the defined time limit.
Greeks.liveApril 22, 2026

Hashed Time-Locked Contract Expiry

Hashed time-locked contract expiry is the point at which a cross-chain swap transaction becomes void because the secret preimage was not revealed within the pre-defined timeframe. This mechanism is designed to prevent theft by ensuring that if the swap cannot be completed in both directions, the assets are returned to their original owners.

However, the expiry itself represents a failure of the intended transaction, which can have negative consequences for a trader who needed that liquidity to meet a margin call or to enter a position. The expiry time must be carefully chosen to allow for network delays while minimizing the time capital is locked in a pending state.

If the time is too short, successful trades will frequently fail; if too long, capital remains inefficiently locked. Optimizing this parameter is essential for efficient cross-chain trading.

Time-Weighted Ordering
Economic Collateral
Proof Generation Time
Smart Contract Failover
TVL Volatility
Solvency Analysis
Smart Contract Rebalancing Logic
Protocol-Level Address Blocking

Glossary

Digital Asset Volatility

Asset ⎊ Digital asset volatility represents the degree of price fluctuation exhibited by cryptocurrencies and related derivatives.

Gas Fee Optimization

Efficiency ⎊ Gas fee optimization refers to the strategic reduction of transaction costs on blockchain networks, particularly Ethereum, where "gas" is the unit of computational effort.

Automated Market Makers

Mechanism ⎊ Automated Market Makers (AMMs) represent a foundational component of decentralized finance (DeFi) infrastructure, facilitating permissionless trading without relying on traditional order books.

Risk Sensitivity Analysis

Analysis ⎊ Risk Sensitivity Analysis, within cryptocurrency, options, and derivatives, quantifies the impact of changing model inputs on resultant valuations and risk metrics.

Quantitative Finance Modeling

Model ⎊ Quantitative Finance Modeling, within the context of cryptocurrency, options trading, and financial derivatives, represents a sophisticated application of mathematical and statistical techniques to price, manage, and trade complex financial instruments.

Dispute Resolution Mechanisms

Action ⎊ ⎊ Dispute resolution mechanisms in cryptocurrency, options trading, and financial derivatives frequently initiate with formal action, often triggered by a perceived breach of contract or operational failure.

Programmable Money Security

Asset ⎊ Programmable Money Securities represent a novel class of digital assets designed to embed executable logic directly within their underlying token structure.

Consensus Algorithm Selection

Algorithm ⎊ The selection of a consensus algorithm represents a foundational decision in designing distributed ledger technologies, particularly within cryptocurrency ecosystems.

Hash Function Security

Cryptography ⎊ Hash function security, within cryptocurrency and derivatives, centers on the resistance of these functions to preimage, second preimage, and collision attacks; a compromised function undermines the integrity of blockchain data and digital signatures.

Decentralized Storage Solutions

Architecture ⎊ Decentralized storage solutions, within the cryptocurrency ecosystem, represent a fundamental shift in data management, moving away from centralized servers to a distributed network of nodes.