Flare Networks has deployed a decentralized system that allows smart contracts to verify events occurring on other blockchains and Web2 systems without relying on bridges or trusted intermediaries.
The system, called the Flare Data Connector, uses around 100 independent data providers to attest to external events and combine their answers into a cryptographic proof that lands on-chain. Any smart contract can then consume that proof as input to its logic. The mechanism bypasses the typical cross-chain bridge model, in which a single or small set of validators pass along claims about off-chain activity.
Developers submit attestation requests for specific external events: a payment on the XRP Ledger, a Bitcoin or Dogecoin transaction, or data returned by a Web2 API. Each of Flare's data providers independently verifies whether the event occurred. Rather than trusting any single provider, the system combines their answers into a single proof using Merkle attestation, a cryptographic technique that lets on-chain logic verify the underlying event itself rather than accept a claim about it.
The Data Connector underpins FAssets, Flare's system for bringing non-smart-contract tokens like ripple:native into decentralized finance. FAssets allow holders of XRP and other non-programmable assets to mint wrapped versions usable in DeFi applications, with the Data Connector verifying the underlying collateral on its home chain without an intermediary holding it in custody.
Most blockchains remain isolated from the rest of the ecosystem. A contract on Ethereum cannot natively check whether a payment happened on Bitcoin, which has forced cross-chain applications to rely on bridges that lock assets on one chain and issue wrapped versions on another. Those bridges typically depend on a small validator set or a single operator, creating a centralized custody and verification layer.
Flare's approach distributes the verification task across a larger provider set, each with economic incentives to report accurately. The system is live and developers can request attestations for events on supported blockchains and APIs through Flare's data connector product page.
The 100-provider model means Flare uses roughly 50 times more independent attesters than the typical bridge validator set. This approach trades the simplicity of a small trusted set for the redundancy of distributed consensus on external facts, a model that reverses the custodial risk model of traditional cross-chain infrastructure.
