Enterprise Solutions
Bring your company to the next level with innovative blockchain infrastructure, custom governance and verifiable data trails.
- DAO & governance platforms
- Blockchain micropayments
- Supply chain & traceability
Design, build and launch production dApps with secure smart contracts and great UX.
Protocol and infrastructure engineering tailored to scalability, security and cost.
Comprehensive audits with actionable findings to harden your contracts and apps.
Integrate wallets, chains and on-chain data into your existing products seamlessly.
Technical due diligence, tokenomics and materials that help you raise with confidence.
Asset and message bridge implementations with rigorous security best practices.
Interoperable architectures enabling users to move value across ecosystems.
End-to-end product delivery: front-end, contracts, infra and observability.
AMMs, lending, staking and yield systems engineered for safety and capital efficiency.
Central-limit order books and swap DEXes with performant indexers and analytics.
Battle-tested smart contracts with test suites, audits and upgrade paths.
Dashboards and tooling to manage digital assets across chains and wallets.
Real-world assets and on-chain representations with compliant token standards.
Fungible and non-fungible token contracts, vesting and distribution tooling.
High-performance apps and tokens tailored for the TON ecosystem.
On-chain game economies, marketplaces and player inventory systems.
Primary/secondary sales platforms with royalties, auctions and trait filters.
Metadata pipelines, minting flows and wallet integrations for NFTs.
& Stop negotiating with audit firms.
We are your e2e blockchain dev team, delivering battle-tested code so you can focus on your business, not your tech stack.
Our squads ship production-grade protocol components, integrations and experiences. Choose the track you need or let us design the bespoke mix that accelerates your roadmap.
Bring your company to the next level with innovative blockchain infrastructure, custom governance and verifiable data trails.
Expand the possibilities of your business by connecting wallets, bridges and on-chain data to your existing products.
Launch new protocols or extend existing networks with validators, on/off ramps and aligned token economics.
Attract external builders with SDKs, documentation and testing sandboxes that make shipping on your chain effortless.
Audited protocols trust us to ship secure smart-contract systems before production.
Social proof · Results
Hover to animate · Click for modal
Replay attacks + cross-chain state integrity
Live zk proof attestation run showing how we gate relayers, enforce guardian quorums and block replay windows before mainnet.

Oracle manipulation + double withdrawals
Collateralized debt position replay with forced oracle deviation to prove double-withdrawal and oracle manipulation defenses hold.

Anonymous vote fraud + oracle proofs
Anonymous vote audit trail pushed through IPFS Merkle proofs to surface tampering, replay signatures and fraud attempts.
How we work · Security process
Phase 1
Shadow-fork runs that push oracle drift, zk proof expiry and cross-chain relayer swaps before auditors see the code.
Phase 3
We wire Grafana, Prometheus and custom dune boards so these same checks stay live after go-live.
Phase 2
Stacked GIF thumbnails captured from the same testnet runs your launch plan relies on.

Sequencer uptime + force inclusion paths
Sequencer liveness probe simulating downtime scenarios to validate L2-to-L1 force-inclusion paths and delayed inbox processing.

Cairo edge cases + arithmetic safety
Automated fuzzing campaign targeting Cairo smart contracts for arithmetic overflows, reentrancy patterns and felt252 edge cases.

Bridge invariants + withdrawal proofs
Cross-domain messenger validation ensuring L1-L2 message integrity, withdrawal proof verification and challenge period enforcement.
Captions feed straight into the launch readiness doc so phase reviewers see evidence, not promises.
Live demos · Interactive carousel
Each demo shows real testnet transactions. Hover to preview or click to explore the full implementation.

Replay attacks + cross-chain state integrity
Live zk proof attestation run showing how we gate relayers, enforce guardian quorums and block replay windows before mainnet.

Oracle manipulation + double withdrawals
Collateralized debt position replay with forced oracle deviation to prove double-withdrawal and oracle manipulation defenses hold.

Anonymous vote fraud + oracle proofs
Anonymous vote audit trail pushed through IPFS Merkle proofs to surface tampering, replay signatures and fraud attempts.

Sequencer uptime + force inclusion paths
Sequencer liveness probe simulating downtime scenarios to validate L2-to-L1 force-inclusion paths and delayed inbox processing.

Cairo edge cases + arithmetic safety
Automated fuzzing campaign targeting Cairo smart contracts for arithmetic overflows, reentrancy patterns and felt252 edge cases.

Bridge invariants + withdrawal proofs
Cross-domain messenger validation ensuring L1-L2 message integrity, withdrawal proof verification and challenge period enforcement.

Checkpoint finality + validator consensus
Heimdall checkpoint submission monitoring with validator signature aggregation and Bor block finality verification.

Subnet isolation + warp messages
Custom subnet validator set rotation testing with warp message verification and cross-subnet communication security.
Hire 7BlockLabs
We plug in as your blockchain product squad—whether you need a sprint to MVP, hands-on support post raise or an extended core team.
Our engineers bring experience across chains, languages and tooling stacks so we can launch and iterate with the best fit technology—not force-fit a favourite.
Structure and communication that keep every engagement transparent. We keep you close to critical decisions without adding overhead.
Our product leads and blockchain architects refine requirements with you, highlighting technical risks, opportunities and measurable outcomes.
We shape a delivery roadmap, resource plan and target architecture so every stakeholder understands the path to mainnet.
Whether you need a sprint team for a critical launch or an embedded unit to scale long-term, we tailor engagement to your operating rhythm.
Fixed scope and timeline to deliver a well-defined MVP or feature set.
Cross-functional squad that scales with your roadmap and velocity goals.
Flexible monthly bucket for improvements, audits, maintenance and on-call support.
Unsure what works best?
Book a 15-min scoping callWe document the frameworks, checklists and hard-earned lessons that shape how we build blockchain products with our partners.
Short summary: In 2025, staking APIs finally moved billing onchain. This post distills what actually shipped (and worked) across Coinbase, Figment, Kiln and the EigenLayer ecosystem—plus concrete integration patterns, code-level examples, a
A practical, end-to-end playbook for taking real‑world documents and data (identity, ownership, cash flows, NAV, trade docs) and turning them into verifiable, machine‑checkable proofs on public chains—using modern attestations, privacy-pres
Decision-makers’ guide to standing up an enterprise-grade blockchain program in 24 months—complete with outcome-driven KPIs, regulatory guardrails, and technical milestones that reflect 2024–2025 realities.
> Summary: Token design consultants bridge economics, regulation, and market mechanics to turn a token from an idea into a sustainable, compliant, and liquid asset. In 2025, that means modeling incentives, de‑risking launches, aligning with
A concise guide for founders and product leaders deciding between launching a DeFi appchain with Polygon CDK or building natively on TON with FunC—complete with 2025-era capabilities, concrete design patterns, and implementation playbooks.
In 2025, production-grade dapps rely on a richer, faster, and more standardized Web3 API stack than even a year ago. This guide distills what actually changed (and why it matters), and shows concrete patterns you can ship today across reads
> Summary: Most blockchain proof-of-concepts for “verifiable data vendors” quietly fail because they benchmark the wrong things and let vendors optimize to vanity metrics. This playbook shows decision‑makers how to run a 30‑day, bias‑resist
A practical, interval-based framework for turning a token into durable DAO value. We combine current best practices from leading protocols (Curve, Optimism, Arbitrum, Uniswap, Lido, Aave, EigenLayer, Gitcoin) with implementation-ready param
Short summary: A concrete, production‑ready stack for 2025 that pairs EIP‑7702 smart EOAs, ERC‑7683 intents/OIF, HTTP‑402 payments (x402), and private proving—complete with architectures, code patterns, and rollout playbooks for startups an
> Summary: EIP-7691 doubled Ethereum’s target blob capacity and retuned the fee update curve, changing how blob base fees rise and fall block-to-block. This guide shows decision‑makers how to model the new cost dynamics, quantify volatility
Can’t find what you’re looking for? Reach out and we’ll share more context on how we work and what we can ship together.
Quick, straightforward answers about our blockchain development services, tech stack, locations, and post‑launch support.
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7Block Labs is a trading name of JAYANTH TECHNOLOGIES LIMITED.
Registered in England and Wales (Company No. 16589283).
Registered Office address: Office 13536, 182-184 High Street North, East Ham, London, E6 2JA.
© 2025 7BlockLabs. All rights reserved.