Core Concepts

Bridge Kernel is built around a deterministic pipeline: ingest raw telemetry, generate cryptographic proofs, evaluate policy rules, and persist to an immutable ledger. This section explains each layer.

Architecture

• Architecture — The layered design of Bridge Kernel: adapters, runtime, proof pipeline, policy gate, store, and observability.

Proof Pipeline

• Proof System — How events are canonicalized, hashed with SHA-256, signed with Ed25519, and wrapped in COSE Sign1 envelopes.

Policy Engine

• Policy Engine — Allow/deny rule evaluation, HMAC-signed bundles, and the stage/promote/rollback lifecycle.

Adapters

• Protocol Adapters — Modbus RTU/TCP, SunSpec, OCPP 1.6/2.0, DNP3, IEEE 2030.5, IEC 61850, and webhook ingestion.

Peer Sync

• P2P Sync — File-backed peer synchronization that keeps distributed ledger nodes consistent.