Sequencer Failover & Disaster Recovery

overview

CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy custom smart contracts that form the backbone of your protocol. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive testing to mitigate risk before mainnet deployment.

Token Standards: ERC-20, ERC-721, ERC-1155, and custom implementations.
Protocol Logic: DEX/AMM pools, staking mechanisms, governance modules, and vesting schedules.
Security: Multi-stage audits, formal verification, and gas optimization reviews.
Delivery: Full test suite, deployment scripts, and technical documentation.

We deliver contracts you can trust, with a focus on auditability, maintainability, and upgradability from day one.

key-features-cards

ENTERPRISE-GRADE RELIABILITY

Core Components of Our Sequencer Failover Architecture

Our multi-layered failover system is engineered for zero-downtime operations, ensuring your L2/L3 chain remains live and secure through any infrastructure event.

Hot-Standby Sequencer Cluster

Multiple geographically distributed sequencers run in active-active configuration. Automated health checks and consensus-based leader election ensure sub-second failover with zero transaction loss.

< 500ms

Failover Time

Zero RBF

Transaction Loss

Real-Time State Synchronization

Continuous, cryptographically-verified mempool and state sync between primary and standby nodes. Guarantees transaction ordering consistency and prevents chain splits during failover events.

< 100ms

Sync Latency

End-to-End

Verification

Automated Health Monitoring & Alerting

Probes monitor sequencer latency, block production, and RPC health. Customizable alerting via PagerDuty, Slack, or webhooks triggers failover before user impact.

24/7/365

Monitoring

10+

Health Metrics

Disaster Recovery Orchestration

Pre-defined runbooks and automated workflows for catastrophic events. Includes full sequencer restoration from verified backups and cross-region deployment failover.

< 5 min

RTO Target

RPO < 1s

Recovery Point

Multi-Cloud & On-Prem Deployment

Architecture agnostic to underlying infrastructure. Deploy failover clusters across AWS, GCP, Azure, or your own data centers for maximum resilience and compliance.

Any Cloud

Provider Agnostic

Tier III+

Data Center Spec

Security & Access Isolation

Role-based access control (RBAC), hardware security modules (HSM) for key management, and isolated execution environments prevent compromise from propagating during failover.

SOC 2 Type II

Compliance

Zero-Trust

Network Model

benefits

ENTERPRISE-GRADE GUARANTEES

Business Outcomes: Beyond Technical Resilience

Our Sequencer Failover & Disaster Recovery service delivers measurable business advantages, turning infrastructure resilience into a competitive edge and tangible ROI.

Guaranteed Transaction Finality

Eliminate settlement risk with our multi-layered consensus. We guarantee transaction finality in under 2 seconds, ensuring your users' funds and state changes are irreversible and secure, critical for DeFi and high-frequency applications.

< 2 sec

Finality Guarantee

100%

Data Integrity

Zero Revenue Loss During Outages

Maintain 100% platform uptime and continuous fee generation even during primary sequencer failures. Our hot-standby architecture ensures your business operations and revenue streams are never interrupted.

99.99%

Effective Uptime

0 sec

Failover Downtime

Regulatory & Compliance Readiness

Meet stringent financial service requirements with a provably resilient system. Our architecture, documented failover procedures, and audit trails provide the evidence needed for SOC 2, MiCA, and other regulatory frameworks.

SOC 2

Framework Ready

< 30 days

Audit Support

Reduced Operational Burden

Shift from a reactive, on-call firefighting model to a proactive, automated resilience posture. Our managed service handles monitoring, failover execution, and recovery, freeing your team to focus on core product development.

70%

Ops Time Saved

24/7

Managed Coverage

Enhanced Investor & User Confidence

Demonstrate institutional-grade reliability to VCs, partners, and users. A robust disaster recovery plan is a key due diligence item that de-risks your platform and builds trust in your brand's long-term viability.

Enterprise

Trust Signal

SLAs

Contractual Backing

Faster Time-to-Market for New Chains

Launch new appchains or L2s with built-in, battle-tested resilience from day one. Our modular failover system integrates seamlessly, eliminating months of custom development and security review for critical infrastructure.

< 4 weeks

Integration Time

Pre-audited

Security Posture

Infrastructure Decision Analysis

Build vs. Buy: Managing Sequencer Resilience

A detailed comparison of the operational and financial trade-offs between developing a custom sequencer failover system in-house versus partnering with Chainscore for a managed service.

Factor	Build In-House	Chainscore Managed Service
Time to Production	6-12 months	4-8 weeks
Initial Development Cost	$250K - $600K+	$50K - $150K
Annual Maintenance & Ops Cost	$150K - $300K	Included in SLA
Security Posture	High Risk (Unaudited, Novel Code)	Low Risk (Audited, Battle-Tested)
Uptime SLA Guarantee	None (Your Responsibility)	99.9% with Financial Backing
Disaster Recovery Time Objective (RTO)	Hours to Days (Manual)	< 5 Minutes (Automated)
Team Requirement	3-5 Senior Blockchain DevOps Engineers	Dedicated Chainscore SRE Team
Protocol & Chain Coverage	Limited to Initial Build	Multi-Chain (Ethereum, Arbitrum, Base, etc.)
Total 3-Year Cost of Ownership	$700K - $1.5M+	$180K - $450K

how-we-deliver

TRANSPARENT & PREDICTABLE

Our Delivery Process: From Architecture to Handoff

We deliver a production-ready, resilient sequencer failover system through a structured, milestone-driven engagement. This ensures zero surprises, complete transparency, and a seamless handoff to your team.

1. Architecture & Threat Modeling

We conduct a comprehensive audit of your current sequencer setup and consensus mechanism to identify single points of failure. This phase delivers a detailed failover architecture blueprint and threat model, establishing the foundation for a resilient system.

48-72 hrs

Initial Assessment

Detailed Report

Deliverable

2. Hot/Cold Standby Implementation

Our engineers deploy and configure high-availability sequencer nodes with automated health checks. We implement state synchronization protocols and define clear RPC failover logic to ensure zero downtime during a primary sequencer outage.

1-2 weeks

Build & Deploy

< 5 sec

Failover Trigger

3. Security Hardening & Pen Testing

Every component undergoes rigorous security review following our internal audit checklist. We simulate Byzantine failures and network partitions to validate the failover system's integrity under adversarial conditions before production.

Comprehensive

Security Review

Attack Simulations

Validation

4. Monitoring & Alerting Integration

We integrate with your existing observability stack (Datadog, Grafana, Sentry) to provide real-time dashboards for sequencer health, RPC performance, and failover events. Custom alerts are configured for immediate incident response.

Custom Dashboards

Deliverable

PagerDuty/Slack

Alert Channels

5. Runbook Creation & Team Training

We deliver detailed operational runbooks for failover procedures, rollback steps, and disaster recovery scenarios. Your SRE and DevOps teams receive hands-on training to confidently manage the system post-handoff.

Complete Runbooks

Documentation

Hands-on Session

Team Training

6. Production Handoff & SLA Finalization

We oversee the final production cutover, validate system performance under load, and finalize the Service Level Agreement (SLA). The process concludes with a formal handoff, transferring all code, documentation, and access credentials to your team.

Formal Handoff

Process

99.9% Uptime

Target SLA

Technical Due Diligence