# Herodotus

> ZK Infrastructure for Blockchains: Verify, Compute, Scale

Herodotus provides data access middleware that enables blockchain applications to verify and access cross-chain data using cryptographic proofs.

Herodotus builds zero-knowledge infrastructure for blockchains focusing on three core solutions. The platform provides verifiable data access across different blockchain layers, offers verifiable compute capabilities for processing chain data with cryptographic integrity, and develops scaling solutions for enhanced blockchain performance. These technologies enable trustless cross-chain applications without intermediaries.

- Type: Company
- Sector: Infrastructure
- Status: Active
- Founded: 2022-01-01
- Profile: https://thegrid.id/profiles/herodotus

## Products

- [Herodotus Storage Proofs](https://thegrid.id/profiles/herodotus): Storage Proofs implements cryptographic inclusion proofs combined with computation validation mechanisms to attest data validity across blockchain networks. The system verifies data presence within cryptographic structures while authenticating transformations applied to that data, enabling secure cross-chain data access without third-party trust. (Cross-chain Infrastructure, Live, Main Product)
- [Herodotus Storage Proof API](https://thegrid.id/profiles/herodotus): Storage Proof API provides developers with programmatic access to generate and verify storage proofs within applications. The API abstracts cryptographic complexity and integrates storage proof validation logic through a well-defined interface, allowing applications to implement cross-chain data verification without specialized knowledge of proof systems. (Developer Tooling, Live)
- [Herodotus Turbo](https://thegrid.id/profiles/herodotus): Turbo implements a smart contract interface for generating storage proofs through specialized RPC endpoints. The system enables synchronous transactions with automated proof generation, allowing developers to access cross-chain data through simple function calls without managing the underlying cryptographic proof generation process. (Cross-chain Infrastructure, Live)
- [Herodotus Data Processor](https://thegrid.id/profiles/herodotus): Herodotus Data Processor implements a framework for defining data sets and executing verifiable computations over blockchain data. The system uses STARK proofs and storage proofs to validate computation correctness, enabling applications to perform complex data processing while maintaining cryptographic integrity across blockchain networks. (Developer Tooling, Live)
- [Herodotus Integrity Verifier](https://thegrid.id/profiles/herodotus): Integrity Verifier implements STARK proof verification directly on Starknet for Layer 3 scalability. The system enables efficient validation of cryptographic proofs within the Starknet ecosystem, allowing developers to build advanced trust-minimized applications with enhanced verification capabilities on the network. (Developer Tooling, Live)
- [Herodotus Sequencer-to-Sequencer](https://thegrid.id/profiles/herodotus): Sequencer-to-Sequencer implements a framework for horizontal scaling of app-chains for rapid data access between Ethereum rollups. The system utilizes storage proofs and specialized data processing for direct off-chain communication between sequencers, reducing latency while maintaining security for applications requiring frequent cross-chain interactions. (Cross-chain Infrastructure, Live)

## Links

- [Main](https://herodotus.dev)
- [Blog](https://herodotusdev.medium.com)
- [Documentation](https://docs.herodotus.dev/herodotus-docs)
- [Media Kit/branding](https://drive.google.com/file/d/10lqeG3B9BZApTtt46JObYU5iYpGuRGoi/view?usp=sharing)
- [Twitter / X](https://x.com/HerodotusDev)
- [GitHub](https://github.com/HerodotusDev)
- [Telegram](https://t.me/StorageProofs)
- [LinkedIn](https://www.linkedin.com/company/herodotus)

## Legal

This data is provided under two licensing models.

Model 1 - open data. The open data core is licensed under the Open Database License (ODbL) — a copyleft/share-alike license allowing free use, modification, and sharing for any purpose. Attribution is required: include "Powered by The Grid" linking to https://thegrid.id wherever the data is used. Derivative databases must be shared under ODbL terms. Trademarks, logos, and brand names (marked "Special TPIP") are not covered by the ODbL. For ML/AI use: training datasets that substantially extract ODbL data are Derivative Databases and must be shared under ODbL if publicly used; models must be attributed in documentation.

Model 2 - commercial licenses. The Grid Data Service (TGDS) is also available as a commercial license. See [Web Services Terms](https://about.thegrid.id/legal/web-services-terms) for commercial use that is not covered by the open data service.

The following applies to both licensing models.
- All data is provided AS IS with no guarantees of accuracy.
- The Grid does not provide investment, legal, or tax advice, and
- a project's presence in The Grid's data does not imply endorsement.


- [Data Licensing & Disclaimers](https://about.thegrid.id/legal/data-licensing-and-disclaimers): Licensing models and disclaimers
- [Open Data (ODbL)](https://about.thegrid.id/legal/open-data): Open Database License terms and scope for The Grid's open data service.
- [Attribution Guidelines](https://about.thegrid.id/legal/open-data-attribution-guidelines): How to attribute The Grid's data when using the open data service.
- [Web Services Terms](https://about.thegrid.id/legal/web-services-terms): commercial Terms for using data services.
- [All Legal Documents](https://about.thegrid.id/legal): Full index of terms, policies, and disclosures

## Optional

- [TGS Field Descriptions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-field-descriptions.md): Schema field definitions for The Grid's data model
- [TGS JSON Structure](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-json-structure.md): Data model structure and relationships
- [Product Type Definitions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-definitions.md): Definitions for each product type
- [Product Type Classification](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-classification.md): Guide for classifying products into types
- [Grid MCP Guide](https://github.com/The-Grid-Data/workspace-public/blob/main/grid-search/skills/grid-query/references/grid-mcp-guide.md): How to query The Grid programmatically via MCP