TrustChain Evidence Ledger
Verifiable trust for critical supply chains. TrustChain turns documents, custody transfers, operational events and risk signals into verifiable, auditable and explainable evidence with AI-assisted review.
Problem context
In critical industries, trust cannot only be declared. It needs to be demonstrated through documents, custody history, operational evidence and clear accountability across suppliers, logistics teams, manufacturers, auditors and observers.
What TrustChain demonstrates
TrustChain is not presented as a generic blockchain application. The blockchain layer is used for proof anchoring, while operational data, documents and workflows remain in controlled systems. AI does not make autonomous decisions. It helps auditors and operators see what is proven, what is missing and where contradictions appear.
Key capabilities
A practical enterprise workflow for evidence, traceability and audit readiness.
Digital passport
Creates a structured record for products, batches or critical components.
Document hash linking
Links documents to verifiable hashes without placing raw documents on-chain.
Custody transfer workflow
Tracks handovers between supplier, logistics, manufacturer, auditor and observer roles.
Risk events
Marks temperature, transport, tamper and missing-evidence events for review.
Evidence pack
Generates an auditable evidence pack for enterprise clients, auditors or authorities.
AI Evidence Copilot
Supports summaries, citations, evidence mapping and missing-information checks.
Data boundary separation
Separates public information from internal, technical or sensitive records.
Operator-led review
Keeps important steps inspectable and controlled by humans.
Relevant sectors
TrustChain is designed for conversations where evidence, custody and auditability matter.
EV components and Battery Passport readiness.
Industrial supply chain and sensitive logistics.
Pharma cold-chain and temperature-sensitive transport.
Industrial maintenance, handover and field evidence.
Food safety, provenance and defensive dual-use resilience scenarios.
Technical stack
A demonstrable B2B stack built around isolated services, private proof infrastructure and reviewable evidence.
Application
- Next.js / React frontend
- NestJS backend
- TypeScript codebase
Data and storage
- PostgreSQL
- Redis queue and cache
- MinIO / object storage
Proof layer
- Hyperledger Besu
- Private permissioned network
- Solidity and OpenZeppelin AccessControl
Deployment
- Docker Compose on VPS
- Traefik routing and TLS
- Separate service volumes
AI layer
- AI Evidence Copilot
- Citations and human review
- Safety policies for assisted analysis
Security baseline
- No public RPC exposure
- No public Postgres, Redis or MinIO exposure
- Controlled operational access model
Relationship with Aegis
The two demonstrators cover complementary parts of critical-operations infrastructure.
Aegis focuses on incident intelligence, operational analysis, document RAG and evidence-grounded briefing.
TrustChain focuses on proof, custody, traceability, audit readiness and accountable handover.
Together, Aegis can explain operational risk while TrustChain proves the route, documents and responsibility chain.
Current stage
TrustChain is an advanced demonstrator and controlled operational pilot prepared for selected B2B conversations. It is not presented as a certified product or legal compliance guarantee. The focus is verifiable infrastructure for audit, traceability and DPP / Battery Passport readiness.