ChronoBond solves liquid staking's "time-blind" flaw. Stake FLOW to mint unique NFT Bonds with fixed yields and maturity dates. This creates Flow's first native bond market to trade fixed-income asset
ChronoBond is a decentralized fixed-yield bond protocol built on Flow, designed to solve the core problems of modern DeFi: variable rates, manual yield harvesting, and reliance on external keepers. We provide a true "set it and forget it" fixed-income experience, 100% on-chain.
Users can mint a ChronoBond NFT, which represents a fixed-yield, fixed-term bond. This bond guarantees a predictable return, removing the volatility of variable APYs.
Fixed-Yield Rates: Know your exact returns upfront.
Multi-Token Mint/Redeem: Mint a bond with USDC; redeem your mature bond back to USDC. All in one transaction.
Tradeable NFT Bonds: Each bond is a unique NFT, allowing for a liquid secondary marketplace to trade fixed-income positions.
Zero External Dependencies: No keepers, no oracles, no centralized backends. Everything runs 100% on the Flow blockchain.
This protocol is the foundation for a true fixed-income derivatives market on Flow. Post-hackathon, we will build a second-layer protocol to "strip" ChronoBonds into two new, fully-tradable fungible tokens:
Principal Token (cPT): A zero-coupon bond representing the right to the underlying principal at maturity.
Yield Token (cYT): An interest-only strip representing the right to all accrued yield.
This will unlock sophisticated, Pendle-like strategies for institutional and retail users, all built on the secure, composable foundation of ChronoBond.
During this hackathon, we integrated two of Flow's most powerful new features to build a next-generation DeFi primitive. First, we leveraged Flow's native Scheduled Transactions to create a 100% on-chain, trustless auto-compounding mechanism. Users can set their bonds to automatically reinvest upon maturity, allowing the protocol to roll over the entire principal and earned yield into a new bond without any user intervention or centralized bots. Second, we implemented the full Flow Forte Actions standard, transforming ChronoBond into a composable "money lego." Our ChronoBondStakingSink contract can accept deposits from any protocol, enabling users to mint a FLOW-backed bond using any token (like USDC) in a single, atomic transaction. This also allows any DEX, wallet, or yield aggregator to integrate ChronoBond as a fixed-yield strategy with one simple Action call.
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