> ## Documentation Index
> Fetch the complete documentation index at: https://docs.verity.usher.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> A full glossary of terms used in Verity documentation

| **Term**                                          | **Definition**                                                                                                                                                                                                                                                      |
| ------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Verity**                                        | A data security infrastructure solution that enables developers to verify data authenticity, integrity, and transformation, creating verifiable data pipelines between traditional systems and blockchains.                                                         |
| **Verity Prover Orchestrator**                    | The process created by the Developer to orchestrate the data pipeline, using the Verity Client to interface with the Verity Prover.                                                                                                                                 |
| **Verity Prover Proxy**                           | A proxy node for generating MPC-TLS proofs.                                                                                                                                                                                                                         |
| **Verity Client**                                 | A client interface used to interact with the Verity Prover and manage data pipeline orchestration.                                                                                                                                                                  |
| **Verity Notary**                                 | A node that verifies TLS proofs generated by the Prover, ensuring the integrity and authenticity of the data.                                                                                                                                                       |
| **Verity Network**                                | A network of nodes, including Provers and Notaries, that collectively collaborate over a protocol to verify data authenticity, integrity, and transformation.                                                                                                       |
| **Verity CLI**                                    | A command-line interface for operating Verity Network Nodes and verifying TLS proofs.                                                                                                                                                                               |
| **Verity Data Processor (VDP)**                   | A framework that provides libraries and tools to process multiple TLS attestations into a verifiable output via a zkVM, ensuring scalability and efficiency.                                                                                                        |
| **zkTLS**                                         | A protocol that combines Zero-Knowledge (ZK) and Multi-Party Computation (MPC) cryptographic primitives to cryptographically prove data authenticity for TLS-enabled sources.                                                                                       |
| **Data Flow Proofs (DFPs)**                       | Cryptographically verifiable proofs of data flow, ensuring that data is sourced and processed according to predefined logic. Used interchangeably with zkTLS proofs.                                                                                                |
| **Verifiable Data Processing Environment (VDPE)** | An environment, such as a zkVM or a decentralised replicated compute platform, where data processing logic is executed and verified.                                                                                                                                |
| **Oracle Integrations**                           | Collaborations with Decentralised Oracle Networks (DONs) and Data Delivery Networks (DDNs) to integrate zkTLS proofs into blockchain systems, simplifying the delivery of private data on-chain.                                                                    |
| **zkRollup**                                      | A method of consolidating numerous TLS attestations into a single verifiable proof via ZK VDPE.                                                                                                                                                                     |
| **TLS Proof**                                     | A cryptographic proof generated by the Verity Prover to verify the authenticity and integrity of data sourced from TLS-enabled endpoints. Used interchangeably with MPC-TLS proofs.                                                                                 |
| **MPC-TLS**                                       | An implementation of TLS that uses Multi-Party Computation to ensure data authenticity and integrity.                                                                                                                                                               |
| **Verifier**                                      | The coordination and verification layer of the Verity network, ensuring non-collusion and authorised notary selection.                                                                                                                                              |
| **Proof Precomputation**                          | The process of extracting and processing public elements from TLS proofs to optimise ZK computations and minimise proving times.                                                                                                                                    |
| **Proof Verification & Conversion**               | The process of verifying TLS proofs and facilitating conversions to cryptographic formats like tECDSA for reduced ZK computational load and wider compatibility with destination systems.                                                                           |
| **Source**                                        | A TLS-enabled HTTP endpoint, either third-party or first-party data owned by the Prover, from which data is sourced. May also be first-party data provided directly.                                                                                                |
| **Destination**                                   | Typically a blockchain for trustless final verification, but may also include centralised systems for data analysis, trust management, and cybersecurity applications.                                                                                              |
| **zkVM**                                          | A virtual machine that uses Zero-Knowledge proofs to verify computations, ensuring data privacy and integrity.                                                                                                                                                      |
| **Decentralised Oracle Networks (DONs)**          | Networks that decentralise trust in data sourcing, enabling the delivery of real-world data to blockchains.                                                                                                                                                         |
| **Data Delivery Networks (DDNs)**                 | Networks that facilitate the delivery of data feeds to multiple parties, often used in conjunction with Oracle technologies.                                                                                                                                        |
| **IC (Internet Computer)**                        | A decentralised and replicated compute platform that enables the processing of data in a verifiable manner. It uses Chain-key cryptography to facilitate secure and efficient computation, allowing for the integration of real-world data into blockchain systems. |
| **Chain-key Cryptography**                        | A cryptographic primitive specific to the Internet Computer (IC) that combines several advanced cryptographic techniques, including MPC, TSS, and DKG, to produce portable cryptographic outputs.                                                                   |