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Last reviewed August 19, 2026

Blockchain Proof of Concept

Eight weeks from discovery to a working ledger in your own cloud, with a written verdict on whether to build it at all.

A blockchain proof of concept answers one question: does this problem need a distributed ledger, and if it does, what does the smallest working version look like? The engagement runs eight weeks, ends with a system deployed in your own Azure subscription and produces a costed plan for production.

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Last updated
by Dmytro Nasyrov, Founder and CTO. Content reflects Pharos Production delivery data as of that date. Editorial policy.
Olena Zaichenko - FinTech and AI scientist and advisor to Pharos Production

Technically reviewed by Olena Zaichenko, D.Sc.

FinTech and AI Scientist and Advisor

Professor, Department of Mathematical Methods of System Analysis, Institute for Applied System Analysis, Igor Sikorsky Kyiv Polytechnic Institute. Financial analyst at EPAM Systems from 2005 to 2019.

Reviewed for technical accuracy on August 19, 2026. Not an endorsement of any commercial claim on this page.

When a ledger is the wrong answer

A ledger earns its cost in three situations: parties who do not fully trust each other need to agree on one record, a record must be provably unaltered after the fact or settlement has to clear without an intermediary holding funds.

If one organization owns the data and no outside party needs to verify it independently, a database with an append-only audit log does the same job for less money and less operational risk. Discovery ends with that verdict in writing at week two. If the answer is no, you have spent two weeks instead of two quarters.

What we have built

Ludo, a Web3 reputation platform, indexes 15+ blockchains at over 10,000 events per second and returns scores in under 200ms at 99.9% uptime.

PumpTap, a multi-chain wallet supporting 20+ chains, handles 50,000+ daily transactions with zero security incidents.

GridTradeX settles on chain in two block confirmations. Its smart contracts passed three independent audits with zero critical findings.

Kimlic issues tamper-proof reusable identity credentials and lifted onboarding completion from 62 to 89 percent at 140,000 verification flows a month.

Nextcheck runs KYC and AML at 5,000+ verifications a day with 99.8% OCR accuracy across 40+ document types.

Nexora integrates six carrier systems, Microsoft Dynamics 365 Business Central, Salesforce, DocuSign and Adyen. Migration moved 70,000 active policies and 1.2 million documents.

Chains, standards and tooling

We work across EVM and non-EVM chains. Solana uses Rust and the Anchor framework, TON backs Telegram mini-apps and Cosmos runs CosmWasm. Each runtime has its own gas model and its own attack surface, so the audit method changes with the chain rather than being reused across all of them.

Token standards: ERC-20, ERC-721, ERC-721A, ERC-1155, ERC-4626 and ERC-4337 account abstraction, plus ERC-3643 and ERC-1400 where transfers must be permissioned.

Regulatory scope: MiCA, PSD2, AML and Travel Rule.

What runs on Azure

Microsoft retired Azure Blockchain Service in September 2021, so there is no first-party managed blockchain network to deploy. Two designs replace it, and choosing between them is part of discovery.

Where you need a permissioned tamper-evident record rather than a public network, Azure Confidential Ledger provides it, built on the Confidential Consortium Framework and running inside hardware-backed enclaves. Azure SQL Database ledger covers relational records that need the same integrity guarantee.

Where you need a full network with independent node operators, the ledger runs on Azure Kubernetes Service. Azure Key Vault and Managed HSM hold signing material. Azure Monitor supplies the operational baseline you will run against after handover.

How the eight weeks run

  1. Weeks 1 to 2. Discovery. Data flows, the parties involved, trust boundaries, regulatory constraints and the record that must be provable. Ends with the feasibility verdict.
  2. Weeks 3 to 4. Architecture. Azure service selection, ledger choice, key management, identity and integration points, with a cost model at your stated volume.
  3. Weeks 5 to 7. Build. The proof of concept deployed to your subscription and integrated with one upstream and one downstream system.
  4. Week 8. Validation and handover. Threat model, audit scope, production roadmap and a recorded handover session.

What you get

  • Feasibility report, including the case against building.
  • Target architecture on Azure with service list, network design and key-management model.
  • Working proof of concept in your own subscription.
  • Threat model and audit scope for the ledger and any smart contracts.
  • Azure cost model for the proof of concept and for production at your volume.
  • Production roadmap with sequencing, risks and a delivery estimate.
  • Source code and a recorded handover session.

Who this is for

Funded startups past seed, operating businesses scaling a product that already works and enterprises moving an older stack onto current technology. Minimum engagement is $50,000.

An approach to the development cycle

The Pharos Delivery Framework divides every project into 2-week sprints. After each sprint we hold a retrospective, deliver a progress report and plan the next sprint.
  1. Team Assembly

    Our company starts and assembles an entire project specialists with the perfect blend of skills and experience to start the work.

  2. MVP

    We'll design, build and launch your MVP, ensuring it meets the core requirements of your software solution.

  3. Production

    We'll create a complete software solution that is custom-made to meet your exact specifications.

  4. Ongoing

    Continuous Support

    Our company will be right there with you, keeping your software solution running smoothly, fixing issues and rolling out updates.

Trusted & Recognized

Partnerships and awards

Recognized on Clutch, GoodFirms and The Manifest for software engineering excellence

  • Partner1
  • Partner2
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  • Partner5
  • Clutch Global Leader, Spring 2025
  • Clutch Top Blockchain Company, Ukraine 2025
  • Clutch Top Web3 Development, Ukraine 2025
  • Clutch Top Smart Contract Development, Ukraine 2025
  • GoodFirms Review Award 2025
  • The Manifest Top Blockchain Company, Ukraine 2024

65+ industry awards

Frequently asked questions

Last updated:

  • Copy link Copies a direct link to this answer to your clipboard.

    You need a distributed ledger when parties who do not fully trust each other must agree on one record, when a record must be provably unaltered or when settlement must clear without an intermediary holding funds. If one organization owns the data and nobody outside needs to verify it independently, an append-only audit log in a database is cheaper to build and easier to run.

    The first two weeks of this engagement produce that verdict in writing, before any build budget is committed.

  • Copy link Copies a direct link to this answer to your clipboard.

    Microsoft retired Azure Blockchain Service on 10 September 2021 and has no first-party managed blockchain network in its place. For a permissioned integrity record, Azure Confidential Ledger does the job, built on the Confidential Consortium Framework with instances running in hardware-backed enclaves.

    Azure SQL Database ledger covers relational data needing the same guarantee. For a full network with independent node operators, the ledger runs on Azure Kubernetes Service, with Azure Key Vault and Managed HSM holding signing material.

  • Copy link Copies a direct link to this answer to your clipboard.

    EVM and non-EVM both. Solana through Rust and the Anchor framework, TON for Telegram mini-apps, Cosmos through CosmWasm.

    PumpTap, a wallet we built, supports 20+ chains behind one interface.

  • Copy link Copies a direct link to this answer to your clipboard.

    Internal review is done by the engineers who wrote the code, because a reviewer who has never shipped on that runtime misses failures specific to it. External audit is separate and independent of us.

    GridTradeX, one of our published cases, passed three independent audits with zero critical findings.

  • Copy link Copies a direct link to this answer to your clipboard.

    You hold a working proof of concept, a costed production plan and the source. If the week-two verdict was that a ledger is the wrong tool, the engagement stops there and you keep the analysis.

  • Copy link Copies a direct link to this answer to your clipboard.

    You do. Code is delivered into your repositories and the infrastructure is defined in Terraform in your own subscription.

Start your blockchain proof of concept

Eight weeks to a working system in your own Azure subscription, or a written verdict on why not to build it

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