EventChain: A Zero-Trust Provenance Protocol for Enterprise Data Integrity

Abstract

This paper describes EventChain, a cryptographic proof layer that makes lifecycle documents, events, changes, comments, approvals, objections, custody transfers, and material review board decisions portable, attributable, and independently verifiable without blockchain infrastructure.

EventChain combines a hash-chained append-only file, identity-bound signatures, role-aware distribution, daily public time anchoring, and offline verification. The result is a proof artifact that can travel with authorised holders and verify locally.

Helios is the enterprise system that applies business logic above this substrate: deciding which lifecycle actions deserve evidentiary weight, binding them to context, and making them usable across document digitization, supply-chain visibility, DPP/MDP workflows, and traceable asset histories. EventChain is the reason Helios can offer verifiable evidence without forcing blockchain complexity onto the industry participants whose records matter most.

The paper covers the provenance problem, use cases, architectural positioning, economic model, technical mechanism, verification boundaries, and deployment path.