Product · AI provenance

Themisra.

An AI provenance protocol: hash any prompt and output pair, quorum-attest it on-chain, verify it anywhere. Model-agnostic.

Themisra is the first of two native Ligate products. It wraps any LLM interaction in a cryptographic receipt — model ID, prompt hash, output hash, temperature, timestamp, wallet, quorum signature — anchored on Celestia, verifiable in under 200ms.

Note

Most of this page is an outline. The detailed sub-pages (API reference, SDK usage, integration recipes) land as the devnet matures.

Who uses it

→ AI providers who want verifiable output attestation as a feature
→ Enterprises under AI compliance mandates (EU AI Act, internal audit)
→ Prompt engineers who want to prove authorship and earn royalties on reuse
→ Content platforms that need provenance on AI-generated media
→ Agent developers who need audit trails for autonomous actions

Two integration paths

1. Native chat

Users chat with any supported AI model directly on Themisra. Every message is auto-attested. Gas is paid in $LGT (~$0.0009 per message). Runs at themisra.xyz.

2. External proof API

For existing apps: submit a prompt + output from ChatGPT, Claude, or any OpenAI-compatible endpoint, and Themisra returns a receipt. No migration, no switching models. Drop-in.

Feature surface

Themisra ships 32 features across 5 categories. This doc captures only the core ten; the full feature list lives on the roadmap and whitepaper.

Core infrastructure

Prompt Registry — hash + timestamp on-chain
AI Model Agnostic — Claude, GPT, Gemini, Llama, Mistral, any API
Native Chat Interface — like ChatGPT but provable
External Proof API — notary for AI interactions done elsewhere
Sovereign SDK Rollup on Celestia
$LGT Token — gas, staking, royalties
Confidential Prompts — ZK proofs via SP1 / RISC Zero (Phase 2)
Cross-chain Bridges — Hyperlane to Solana, Ethereum, any chain
Privy Wallet Auth — email sign-in, no MetaMask required
API Gateway — middleware between apps and AI models

Next up

The API reference and SDK integration guides are the next sections we're writing. For now, the fastest path to a working integration is:

Install the CLI (Getting started)
Claim $LGT from the faucet
Run ligate attest with your prompt + output
Verify the receipt with ligate verify <id>