Live demo

Everything below calls the real cluster's public routes. Notarizing needs a free API key, so the browser demo verifies a real published receipt instead: the notarization of a KEYSTONE ledger hash, sequence 360157, signed by 3 of 4 validators on 2026-10-15.

Cluster status, live

Verify the real receipt, then break it

Each button loads the receipt, applies one edit in your browser, and sends it to POST /api/v1/quorum/verify pinned to the live cluster's configuration hash.

Expected: the first says NOTARIZED; every other button says NOT_VERIFIED and names the check that failed.

The published membership

Notarize your own digest

curl -s -X POST https://cainstudio.online/subscribe/free/signup \
  -H 'content-type: application/json' -d '{"email":"you@example.com"}'      # once, for a free key

echo -n "my board minutes v3" | sha256sum                                     # your digest
curl -s -X POST https://cainstudio.online/api/v1/quorum/notarize \
  -H "X-API-Key: $KEY" -H 'content-type: application/json' \
  -d '{"digest":"<64 hex>","request_id":"minutes-v3"}' > receipt.json

120 notarizations per hour per key. The same request_id returns the same receipt (idempotent).

FIRME AI CORPORATION · CAIN-42 is a Byzantine trust fabric. Numbers marked "our own check" were run by us, not by an independent party. Nothing on these pages is a certification.