Bridge is the passage and boundary-movement observatory in the project. Bridge carries route intent, proof posture, finality labels, delivery results, and receipt summaries. Delivery is not admission: the receiving chain decides what a delivered packet means inside its own economy. Bridge is not QUAD Core, Infra, Liquid, a wallet, a token sale, an airdrop claim page, a node-earning page, a reward program, a generic trading desk, or a shortcut around Core admission. The Bridge observatory may show staged lane, proof, receipt, quarantine, and readiness labels. It must not publish private route logic, operator timing, caps, thresholds, scoring rules, credentials, or exploit-sensitive procedure. The endpoint contract at /endpoint-contract.json lists public static routes and future live route shapes. It is a boundary promise, not a live movement claim. Viewing this site does not require Keplr, a wallet connection, a signature, a seed phrase, or payment.