A cryptographically tamper-evident archive for anything that must outlive its system: legal hold, regulated records, M&A diligence, compliance evidence. PQC-protected — built to survive what's next.
Sub-second seal latency at scale. Receipts ship the same request. No batching, no async wait.
Every receipt is independently verifiable — by you, your auditor, your regulator, or a third party — without trusting us.
7-year retention by default. R2-anchored. Append-only. Designed for legal-hold and regulated workloads.
# Seal a file curl -X POST https://app.epochcoreqcs.com/v1/archive/seal \ -H "X-API-Key: $KEY" \ -H "Content-Type: application/json" \ -d '{"payload":"hello world","content_type":"text/plain"}' # → {archive_id, seal, anchor, cert_pdf_url, verify_url, sealed_at} # Verify it (public — no auth required) curl -X POST https://app.epochcoreqcs.com/v1/verify/arc_...