> For the complete documentation index, see [llms.txt](https://docs.qorechain.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.qorechain.io/appendix/glossary.md). # Glossary Alphabetical reference of terms, abbreviations, and acronyms used throughout the QoreChain documentation. *** **BPF** -- Berkeley Packet Filter. The bytecode format used by the SVM runtime to execute on-chain programs. Programs are compiled to BPF before deployment. **CLFB** -- Cross-Layer Fee Balancing. A mechanism within the multilayer architecture that dynamically adjusts fees across sidechains and paychains to maintain equilibrium and prevent congestion on any single layer. **CPI** -- Cross-Program Invocation. A mechanism in the SVM runtime that allows one deployed program to call another program within the same transaction context. **CPoS** -- Classified Proof-of-Stake. QoreChain's consensus classification system that groups validators into three pools (Emerald, Sapphire, Ruby) based on reputation scores. Each pool has distinct weights in the proposer selection algorithm. **DA** -- Data Availability. The guarantee that transaction data published to the chain can be retrieved by any node. The RDK module provides native DA for rollups, storing blobs on-chain with configurable retention periods. **DPoS** -- Delegated Proof-of-Stake. A consensus mechanism where token holders delegate their stake to validators who produce blocks on their behalf. QoreChain extends DPoS with reputation-weighted classification (CPoS). **EIP-1559** -- Ethereum Improvement Proposal 1559. A transaction fee model that uses a base fee (burned) plus a priority fee (paid to validators). QoreChain implements EIP-1559-style fee mechanics in its EVM runtime. **HCS** -- Hybrid Cryptographic Signatures. QoreChain's dual-signature system where transactions carry both a classical signature (Ed25519) and a post-quantum signature (ML-DSA-87), providing cryptographic security against both classical and quantum adversaries. **IBC** -- Inter-Blockchain Communication. A protocol for authenticated message passing between independent blockchains. QoreChain supports IBC channels for cross-chain token transfers and data relay. **MLP** -- Multi-Layer Perceptron. A class of neural network used in the AI sidecar for pattern recognition in fraud detection and anomaly scoring. **ML-DSA-87** -- Module-Lattice Digital Signature Algorithm (security level 5). The NIST-standardized post-quantum digital signature scheme used by QoreChain for quantum-resistant transaction signing. Produces signatures of 4,627 bytes with public keys of 2,592 bytes. **ML-KEM-1024** -- Module-Lattice Key Encapsulation Mechanism (security level 5). A NIST-standardized post-quantum key encapsulation scheme available in QoreChain's PQC algorithm registry for future encrypted communication channels. **MEV** -- Maximal Extractable Value. The profit that can be obtained by reordering, inserting, or censoring transactions within a block. QoreChain's FairBlock module (tIBE encryption) and 5-lane TX prioritization mitigate MEV extraction. **PQC** -- Post-Quantum Cryptography. Cryptographic algorithms designed to be secure against attacks from both classical and quantum computers. QoreChain implements PQC through its `x/pqc` module with ML-DSA-87 as the primary signature scheme. **PPO** -- Proximal Policy Optimization. A reinforcement learning algorithm used by the RL Consensus module to optimize chain parameters (block size, gas limits, validator set size) based on observed network conditions. **PvP Rebase** -- Player versus Player Rebase. A mechanism in the xQORE module where penalties from early unlock are redistributed proportionally to remaining locked stakers, rewarding long-term commitment. **QCB** -- QoreChain Bridge. QoreChain's native bridge protocol for connecting to non-IBC chains (e.g., Ethereum, Bitcoin, Solana, Avalanche). QCB uses a federated validator set for cross-chain attestation. **QCAI** -- QoreChain Artificial Intelligence. The umbrella term for QoreChain's AI subsystem, including the on-chain heuristic engine (`x/ai` module) and the off-chain AI sidecar service that provides advanced inference capabilities. **QDRW** -- QoreChain Dynamic Reward Weighting. A governance mechanism that allows the RL agent (under governance approval) to dynamically adjust reward distribution weights across validator pools, optimizing for network health metrics. **RDK** -- Rollup Development Kit. QoreChain's native framework for deploying and managing rollups with four settlement paradigms (optimistic, zk, pessimistic, sovereign), five preset profiles, and integrated data availability. **RL** -- Reinforcement Learning. A machine learning approach where an agent learns optimal actions through trial and reward. QoreChain's RL Consensus module uses RL to dynamically tune chain parameters. **RPoS** -- Reputation-based Proof-of-Stake. The overarching consensus model combining DPoS delegation with reputation scoring. Validators earn reputation through uptime, participation, and community contributions, which influences their block proposal frequency. **SHAKE-256** -- A variable-output-length hash function from the SHA-3 family. QoreChain uses SHAKE-256 as its foundational hash function for PQC-related operations, including key derivation and address computation. **SNARK** -- Succinct Non-interactive Argument of Knowledge. A type of zero-knowledge proof that can be verified quickly with a small proof size. Supported as a settlement paradigm in the RDK module for zk-rollups. **STARK** -- Scalable Transparent Argument of Knowledge. A zero-knowledge proof system that requires no trusted setup and is quantum-resistant. Available as an alternative proof system for zk-rollup settlement in the RDK. **SVM** -- Solana Virtual Machine. A high-performance execution environment for BPF programs. QoreChain integrates the SVM as one of three supported runtimes alongside the EVM and CosmWasm. **TEE** -- Trusted Execution Environment. A secure area of a processor that ensures code and data are protected from external access. QoreChain's PQC module supports TEE attestation for key generation proofs. **tIBE** -- Threshold Identity-Based Encryption. A cryptographic scheme where a message can only be decrypted when a threshold of parties collaborate. Used by the FairBlock module to encrypt transaction contents until block finalization, preventing MEV extraction. **uqor** -- The base denomination of the QOR token. 1 QOR = 1,000,000 uqor (10^6). All on-chain amounts, fees, and staking values are denominated in uqor. **xQORE** -- The governance staking derivative of QOR. Users lock QOR to receive xQORE, which grants enhanced governance voting power and earns PvP rebase rewards from early-unlock penalties. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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