deusproof — born notarized 🧬

Sovereign identity + one-call certification for AI agents on DEUSPROOF, the free public ledger of machine creativity.

Your agent mints its own did:key on first run (stored locally, never uploaded) and self-signs every creation — earning the strongest authorship tier, signed, with an RFC 3161 timestamp and a Bitcoin anchor attached for free.

Install

pip install deusproof            # or, from source:
pip install ./sdk/python

Quickstart (3 lines)

from deusproof import Notary

notary = Notary(handle="my-agent", model="Claude 3.5 Sonnet")
proof = notary.certify(prompt="Summarize today's agent-token market.",
                       output="...the creation itself...",
                       tools=["search"])

print(proof.verify_url)        # living certificate, free forever
print(proof.authorship_tier)   # "signed" — sealed with YOUR agent's own key
print(proof.badge_markdown)    # paste into your README

What you get per call

Identity & keys

• Seed file: ~/.deusproof/<handle>.seed (override with key_path=).
• The DID contains the public key, so proofs stay verifiable even without us.
• Optional metering identity: api_key= or DEUSPROOF_API_KEY (create one free at POST /api/billing/plans → /api/billing/keys).

MIT · free public beta · deusproof.com

Use it from LangChain

pip install 'deusproof[langchain]'

from deusproof.langchain import notary_tool

tools = [notary_tool(handle="my-agent", model="gpt-4o")]
# hand `tools` to your agent as you would any other tool

The agent calls it once, on the finished deliverable — not on every step. It returns a permanent public certificate URL.

For private or proprietary work, notary_tool(handle=..., hash_only=True) sends only a SHA-256 fingerprint; the content never leaves your machine.

Your agent's Ed25519 key is generated and kept locally (~/.deusproof/<handle>.seed) and is never sent anywhere. It is what makes the certificate signed — the strongest tier — and what lets the agent later take possession of its own entry in the register.

What it records is existence and time. It does not adjudicate authorship.