Hyperledger & Permissioned Blockchain

We design and ship enterprise blockchains with privacy, auditability, and EU-grade compliance on Hyperledger Fabric (and selected Corda setups).

What you get (deliverables)

Our services cover the entire lifecycle of permissioned blockchain networks. From defining the consortium architecture and governance models to deploying secure chaincode and managing identity via PKI.

We design and ship enterprise blockchains with privacy, auditability, and EU-grade compliance on Hyperledger Fabric (and selected Corda setups).

Consortium Architecture

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Definition of governance models, Membership Service Providers (MSP), organizations, and roles within the network.

Network & Privacy Design

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Implementation of Channels and Private Data Collections (PDC) to ensure data confidentiality among specific participants.

Identity & PKI

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Complete setup of Certificate Authorities (CA), enrollment processes, re-issuance, and revocation procedures.

Chaincode Development

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Development of smart contracts in Go or TypeScript, including rigorous endorsement and validation policies.

GDPR Mapping

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Data minimization strategies, retention policies, and off-chain storage integration to ensure compliance.

Ops & SRE

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Deployment automation, comprehensive monitoring, log management, and runbooks for operational excellence.

Nextrope X

Core Use-Cases & Architecture

Asset Tokenization

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Creating registrars and cap tables within a consortium with strict privacy controls.

Supply Chain Provenance

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Ensuring traceability, providing cryptographic proofs, and enabling selective data disclosure.

Documents & Durable Medium

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Leveraging blockchain for immutability and verifiable timestamps for critical documents.

Interbank Workflows

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Streamlining settlement, reconciliation, and creating tamper-evident audit trails.

Network Architecture

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Orgs/MSP connected via Channels for shared state and Private Data Collections for private subsets.

Compliance & Auditability

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GDPR-aware designs storing personal data off-chain with only hashes on-chain.

Bridges

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Event relays to public chains for notarization or settlement hooks where hybrid models are required.

Infrastructure

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Deployment on Kubernetes/Openshift with GitOps, metrics, logs, and robust backup/DR procedures.

Who we help

We build secure distributed ledger solutions for regulated industries.

Banks & Capital Markets

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Institutions needing auditable workflows for KYC, custody, and settlement.

Enterprises & Consortia

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Organizations in logistics, supply chain, manufacturing, and the public sector requiring transparent collaboration.

Fintechs

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Companies requiring hybrid architectures with a permissioned core bridged to public L1/L2 networks.

Process (Discovery → PoC → Build → Launch → Scale)

1

Discovery (1-2 weeks)

We identify participants, classify data classes, define compliance constraints, and set KPIs.

2

PoC (4 weeks)

Development of a single or multi-channel demo featuring Private Data Collections (PDC) and basic chaincode.

3

Build (6-12+ weeks)

Full implementation of Organizations/MSPs, identities, complex chaincode, endorsement policies, and integrations.

4

Launch

Production rollout including load testing, operations team training, and the creation of a governance handbook.

5

Scale

Onboarding new members, implementing cross-org analytics, and building bridges to public L1/L2 networks.

Get your Blockchain or AI roadmap in 24 hours

One 30-minute call with our engineer can save you weeks of uncertainty.

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[ scratch me ]
European UnionEuropean Funds

NEXT ENTERPRISES LIMITED LIABILITY COMPANY

is implementing the project „Audit of smart contracts using artificial intelligence”

Project co-financed by the EU:
3 090 156,39 PLN

Hyperledger & Permissioned Blockchain - Fabric/Corda Architecture, Privacy, Compliance | Nextrope