Cryptographic receipts for AI outputs.

One HTTPS POST per artifact. Public verifier URL anyone can open. Signed, anchored, retained for 7 years. No infrastructure to run.

Get a free key Read the docs Try the verifier

Same backbone as Sealed (the SMB version) — repositioned for developers and regulated-AI buyers.

The problem

Your AI pipeline produces things your business depends on — generated contracts, RAG responses, agent actions, training-data slices, evaluation runs. None of it has a signature you can hand a regulator.

Three forcing functions land in 2026:

EU AI Act Article 50 — high-risk AI provider transparency obligations (August 2026)
SEC AI-disclosure rules — public-company AI use disclosure (pending)
State-level synthetic-content laws — California, New York, Texas all moving

"I'll log it" stops being a defensible answer.

How it works

from sealed_for_ai import SealedAIClient
import hashlib

client = SealedAIClient(api_key="sk-ai-...")

receipt = client.seal(
    artifact_kind="llm_output",
    subject="Generated for customer #42",
    payload_sha256=hashlib.sha256(output_bytes).hexdigest(),
    metadata={"model": "claude-opus-4-7"},
)

print(receipt.verifier_url)
# → https://chain.epochcoreqcs.com/v1/verify?hash=…&full=1
# Anyone can open that URL and confirm this artifact existed at this exact time.

You SHA-256 the artifact locally — we never see the bytes. We sign the hash, anchor it to Base L2, retain the receipt for 7 years, and hand you back a URL.

What you get

Independent verification

Anyone — auditor, customer, regulator — can open the verifier URL and confirm the seal. No EpochCore account required for verification.

Post-quantum ready

Every seal is dual-signed with Ed25519 (RFC 8032) and ML-DSA-87 (FIPS 204). When quantum eventually breaks Ed25519, your seals still stand.

Regulator-grade retention

7-year minimum (SEC 17a-4 / FINRA-4370), up to 10. Anchored to Base L2 so retention survives our infrastructure.

Live customer

saas-conductor — a 7-step AI idea-generation pipeline that ships every output with a verifier URL.

Live verifier from a real run:

EP-DKAP-A5C2F07BC1BAF4E5 · sealed 2026-05-17 · retention until 2033 · Open verifier ↗

The link works. Try it.

Pricing

Tier	Seals/mo	Price	Best for
Free	10	$0	Tinkering, evaluation
Builder	1,000	$99/mo	Production-shipping startups
Studio	10,000	$499/mo	Series A+, SLA-bound deployments
Enterprise	Custom	Custom	White-label, BYO chain, MSA

Full pricing details →