# Glossary

One line per term, A to Z. Each links to the page that explains it.

- **$NODR:** The native utility and governance token of the Noderr Protocol. [Tokenomics](../tokenomics/README.md)
- **Autonomous Trading Engine (ATE):** The active yield part of the ATS. It describes diversified, data driven trading strategies across DeFi protocols and exchanges. Onchain it is the ExecutionRouter and StrategyRegistry, not a separate engine service. [More](../protocol/autonomous-trading-system/README.md)
- **Autonomous Trading System (ATS):** Umbrella term for Noderr's autonomous trading, yield generation and market making. It covers the ATE, the Floor Engine and the Third Party Contributor System. It is not a standalone service. [More](../protocol/autonomous-trading-system/README.md)
- **Base-Rate Governor:** The onchain contract (`BaseRateGovernor.sol`) that governs the protocol's baseline yield parameters. One of the contracts the ATS maps to.
- **Base Sepolia:** The testnet Noderr is deployed on. [Testnet Status](../introduction/testnet-status.md)
- **DAO:** Decentralized Autonomous Organization. Noderr's governance body, made up of $NODR holders and node operators. DAO voting is planned. [Governance](../protocol/governance/README.md)
- **DeFi:** Decentralized Finance. Open, permissionless financial applications built on blockchains.
- **Floor Engine:** The conservative, baseline yield part of the ATS. It is designed to spread a vault's Floor share across low risk DeFi strategies: lending, liquid staking and stablecoin yield. It is not a $NODR price floor or buyback engine. Any NODR buyback and burn is a separate, dynamic, discretionary mechanism with no fixed rate. [Vault table](../introduction/core-concepts.md#vaults)
- **Guardian Node:** The third node tier. Handles network security, watches for malicious activity and takes part in advanced governance functions. Stake 50,000 NODR. [More](../node-operators/guardian-nodes/README.md)
- **Micro Node:** The entry node tier. Needs no stake (0 NODR) and performs basic network tasks. [More](../node-operators/micro-nodes/README.md)
- **NAV:** Net asset value. The value of a vault share, which is designed to rise as the vault earns yield. [How Noderr Works](../introduction/how-noderr-works.md)
- **NFT:** Non-Fungible Token. A unique digital asset. See UtilityNFT.
- **Node operator:** A person or entity that runs a Noderr node. [Node Operators](../node-operators/README.md)
- **Oracle Node:** The top node tier. Provides real time external data feeds to the protocol's contracts and trading engines. Stake 150,000 NODR. Onchain Oracle elections are planned. [More](../node-operators/oracle-nodes/README.md)
- **Third Party Contributor System:** A Numerai style framework in the ATS for outside strategists to submit predictive trading signals, not raw code. Its contracts are `ContributionRegistry`, `ContributionStaking` and `MetaModelOracle`. Scoring rounds are bi-weekly. Payouts are Sharpe based, 1x–3x: positive rewards are paid from treasury and negative stakes are burned. The meta model is stake weighted and aggregates signals by Pearson TC. Not live yet. [More](../protocol/autonomous-trading-system/third-party-contributors.md)
- **TrustFingerprint:** An onchain reputation score for node operators, based on performance, uptime, security posture and governance participation. Scale 0–10000, shown as 0–1. Entry thresholds: Validator 0.60, Guardian 0.70, Oracle 0.80. [More](../protocol/trustfingerprint/README.md)
- **tUSDC:** Test USDC from the testnet faucet. It is what you deposit into vaults on testnet. [Quick Start](../introduction/quick-start.md)
- **Two-chamber governance:** The planned DAO structure, with an Oracle Chamber and a Guardian Chamber. Not active yet. [Governance](../protocol/governance/README.md)
- **Unstaking period:** The 21-day wait to withdraw staked $NODR. Vault withdrawals have no lock. [Staking Guide](../getting-started/for-users/staking-guide.md)
- **UtilityNFT:** A free NFT minted by the protocol. It represents a node operator's identity and TrustFingerprint, and gates the Guardian and Oracle tiers.
- **Validator Node:** The second node tier. Validates transactions and takes part in consensus. Stake 25,000 NODR. [More](../node-operators/validator-nodes/README.md)
- **Vault:** A smart contract that holds deposits. Six are deployed, each with its own Floor and ATE split and its own target APY band. [Vault table](../introduction/core-concepts.md#vaults)

## Next

- [Core Concepts](../introduction/core-concepts.md)
- [FAQ](./faq.md)
- [White Papers](../white-papers/README.md)