Overview
Orcfax is a data verification service that lets Cardano smart contracts act on real-world information — prices, exchange rates, and other off-chain facts — with a full audit trail proving where the data came from. A developer building a lending app or decentralized exchange plugs into Orcfax to get price feeds their contracts can trust. Unlike services that pipe data from a single provider, Orcfax requires every fact to pass through at least three independent sources before it reaches the blockchain.
Each published data point comes with a permanent record stored on Arweave, a decentralized storage network. That record captures every step: which sources were queried, how the data was normalized, and how the validator network reached agreement. Any user, auditor, or developer can pull up the archive and verify the full chain of custody for a given price or fact — long after the transaction has settled1.
Orcfax runs on Cardano and uses the network's native transaction format, which means smart contracts can read oracle data directly without additional bridging infrastructure. The project was funded partly through Cardano's community grants program (Project Catalyst), and its feeds are consumed by Cardano DeFi protocols.
Key Features
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Three-source triangulation. Every data feed is collected from a minimum of three independent sources. The validator network normalizes and compares them before publishing anything on-chain, making it difficult for a single compromised or incorrect source to push bad data to smart contracts1.
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Permanent, searchable audit archive. Each published fact generates a standards-based record that is stored permanently on Arweave and indexed in the Orcfax Explorer. Developers and auditors can inspect the original source data, validation steps, and signatures for any historical data point1.
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Decentralized validator network. Orcfax is moving from a team-operated model to a permissionless network of independent validator nodes. Node operators stake the FACT token to participate, aligning their incentives with accurate data delivery. Fifty percent of the total FACT supply is reserved to reward validators over the long term2.
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On-demand and scheduled feeds. Integrators can choose between heartbeat feeds that publish data on a regular schedule and on-demand feeds that publish a fact when a smart contract specifically requests it. Both types support deviation triggers that push an update whenever the value moves past a set threshold1.
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Open-source developer tools. Orcfax publishes integration examples, a developer manual, and documented APIs. The on-chain and off-chain code has been audited by Blink Labs (off-chain architecture) and TxPipe (on-chain smart contracts), with the audit documentation publicly accessible3.
What to Expect
Developers will find a structured Orcfax documentation site covering integration guides, API references, and a developer manual for consuming oracle feeds in Cardano smart contracts. The docs walk through both heartbeat and on-demand feed patterns, with example code in the project's GitHub repository1.
The Orcfax Explorer gives anyone a live view of published feeds and their underlying audit packages. Browsing a specific fact statement shows the source data, the validation outcome, and a link to the permanent Arweave archive. This is aimed at dApp users or auditors who want to verify that a feed is behaving as expected without reading raw contract data.
Node operators and those interested in participating in the validator network should review the Incentivized Testnet documentation, which details the four-phase rollout, hardware requirements, and the FACT staking model for validators. The network status page shows validator counts and feed health in real time.
