7Block Labs

by Jay

2025-09-19

12 min read

blockchain protocol security audit for New L1s: Consensus, P2P, and Cryptography Review

Short description (1–2 sentences): A field-tested playbook for decision‑makers launching or adopting new Layer‑1 blockchains: how to audit consensus safety/liveness, P2P resilience, and cryptography choices with concrete controls, recent in

by Jay

2025-09-19

13 min read

Blockchain Protocol Security Audit for Rollups and Sidechains

> Summary: Decision‑makers are moving critical value to rollups and sidechains, but their security hinges on nuanced details—proof systems, data availability, forced‑inclusion paths, upgrade powers, and MEV policy. This guide lays out an up

by Jay

2025-09-19

11 min read

chainlink integrations with CCIP: Cross-Chain Messaging Patterns and Failure Modes

A practical field guide for designing, operating, and auditing Chainlink CCIP integrations—covering real-world messaging patterns, lane-specific constraints, rate-limit engineering, billing math, and what actually fails in production and wh

by Jay

2025-09-19

11 min read

From Blockchain Testing Framework to Production: Common Gaps and How to Close Them

Decision-makers often assume that a strong unit test suite in Hardhat or Foundry means they’re “production‑ready.” In reality, the path from local frameworks to live networks is littered with mismatches: protocol changes, fee dynamics, memp

by Jay

2025-09-18

11 min read

chainlink oracle security best practices for Price Feeds: Staleness, Deviation, and Circuit Breakers

Summary: A practical, decision-maker’s guide to hardening Chainlink Price Feed integrations—how to set and monitor staleness windows, calibrate deviation thresholds, and implement automation-driven circuit breakers that actually work on tod

by Jay

2025-09-18

13 min read

Session-Based Authentication on Ethereum: Delegation Patterns for EIP-7702

EIP-7702, shipped in Ethereum’s Pectra mainnet upgrade on May 7, 2025, lets any EOA opt into smart-account behaviors by delegating its execution to contract code. This post maps concrete delegation patterns to build safe, wallet-managed “se

by Jay

2025-09-18

11 min read

Smart Account UX: Batched Transactions That Don’t Break Composability

Summary: With EIP-7702 live on Ethereum (May 7, 2025) and ERC‑4337 widely deployed, you can deliver one‑click “approve + swap + stake” experiences without sacrificing the open, programmable composability that made Ethereum valuable. This gu

by Jay

2025-09-16

10 min read

Blockchain Security Audit vs Smart Contract Audit: What’s the Difference?

Startup and enterprise teams often conflate “smart contract audits” with “blockchain security audits.” They’re not the same. This guide dissects the scope, outputs, and decision criteria—updated for 2025 realities like EIP‑4844 blobs, rollu

by Jay

2025-09-15

11 min read

Building a DAO Security Posture: From Multisig to Formal Verification

A practical, up-to-date guide to hardening DAO operations—covering treasury multisigs, governance design, timelocks, upgradeability, monitoring, and formal verification—so decision‑makers can move from “safe enough” to institution‑grade ass

7BlockLabs

Full-stack blockchain product studio: DeFi, dApps, audits, integrations.

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.