Frequently asked questions

CertNode is cryptographic proof for events that get challenged later. We sign records at the moment they happen so they hold up when someone disputes them, audits them, or takes them to court. Two product verticals: Stripe apps for chargeback defense and AI Provenance for content authenticity.

Five products. Four Stripe apps for Commerce: Reflex (AI chargeback defense), Vault (pre-dispute evidence at payment time), Recover (failed payment recovery), and Sentinel (cross-merchant refund abuse network). One product for AI: AI Provenance (sign Claude / OpenAI / Mistral / any model output cryptographically). The full list is at certnode.io/products/compare.

Stripe, Shopify, PayPal, Square, and WooCommerce. Reflex is a Stripe Marketplace app for Stripe merchants and works through platform-specific integrations on the others. Stripe is published, Shopify is in App Store review, PayPal/Square/WooCommerce are deployed.

When a dispute is filed on a connected Stripe account, Reflex automatically gathers evidence (3DS, AVS, CVC, device fingerprint, IP, delivery records, customer activity), writes a dispute-specific defense narrative, and submits the package to Stripe within 60 seconds. No manual work required.

Reflex: $0/month, 15% on wins only. Vault: $0/month, $0.03/transaction captured ($0.02 with Reflex bundle). Recover: $0/month, 25% of recovered revenue ($5 minimum, 20% with Reflex bundle). Sentinel: $49/month flat ($39 with Reflex bundle, 14-day trial). AI Provenance: 100 signings/month free, then $0.01/signing with volume discounts. Verifications are always free.

Stripe Smart Disputes (launching June 2026) charges 30% per won dispute and only works on Stripe. Reflex charges 15% (half), works across 5 platforms, captures pre-dispute evidence via Vault, and adds a refund abuse network via Sentinel. The full comparison is at certnode.io/resources/stripe-smart-disputes-alternative.

Cryptographic proof for AI output that may face audit or legal challenge later. Built for compliance teams preparing for EU AI Act Article 50 (enforces August 2026), AI startups facing enterprise procurement that asks how AI is audited, and regulated industries (healthcare, finance, legal) where AI-generated content needs an admissibility-grade trail. Multi-model neutral. Designed for FRE 902(13)/(14) self-authenticating digital evidence.

Same fundamental mechanism (sign at creation, embed in or attach to the artifact, verify later). Different audience. Adobe Content Credentials is built for visual creators inside Adobe tools. AI Provenance is built for compliance teams and developers shipping AI features. If you are a creator looking to badge your work as AI-made, Adobe is the right choice. If you are a platform with audit obligations, we are.

AES-256 encryption at rest, TLS 1.3 in transit. Hosted on infrastructure that is itself SOC 2 certified (Vercel, Supabase, AWS). We never store payment card data. CertNode is a Stripe Partner. Cryptographic receipts are independently verifiable using public JWKS and FreeTSA, so trust does not have to flow through us.

Stripe apps install from the Stripe Marketplace in under a minute (start at certnode.io/reflex). AI Provenance: sign up at certnode.io/sign-up, get an API key, install the @certnode/sdk npm package or use the @certnode/mcp-sign MCP server. Documentation at certnode.io/ai-provenance/docs and certnode.io/docs/cryptographic-stack.

Yes. No long-term contracts. Stripe apps uninstall from the Stripe Dashboard. AI Provenance has no subscription so there is nothing to cancel; usage just stops being billed.

Email support at contact@certnode.io. Documentation at certnode.io/docs. Per-product support pages: certnode.io/reflex/stripe/support, /vault/stripe/support, /recover/stripe/support, /sentinel/stripe/support, and /ai-provenance/docs.