Competitive Comparison

ROOTKey is designed for organisations that require more than a simple timestamping service - they need a full infrastructure layer with flexible deployment, sovereign data handling, and a protocol architecture that matches their operational complexity. This page compares ROOTKey against seven platforms commonly evaluated for enterprise cyber resilience and data integrity workloads.

The platforms below span two distinct categories. Cryptographic proof platforms (ROOTKey, Guardtime, Woleet, OriginStamp, Acronis Notary, LTO Network) anchor data to an immutable ledger and generate independently verifiable proofs of integrity. Backup & recovery platforms (Rubrik, Acsense) protect data through immutable snapshots and rapid restore. These approaches are complementary - backup recovers data after a failure; cryptographic proofing proves the data was never altered before it. When evaluating for regulatory audit trails, tamper-evidence, or zero-trust data validation, ensure you are comparing solutions in the correct category.

Platforms Compared

ROOTKey

Enterprise cyber resilience infrastructure. Blockchain-backed data integrity, validation, and audit trail APIs with sovereign deployment options and multi-protocol architecture.

Guardtime

Estonian-origin KSI (Keyless Signature Infrastructure) blockchain platform. Widely used in government and defence for data integrity assurance at scale.

Woleet

French blockchain timestamping service using the Bitcoin network. Chainpoint-compatible proofs for document integrity and e-signatures.

OriginStamp

German multi-blockchain timestamping platform anchoring to Bitcoin, Ethereum, and Polygon. API-first, used in academia, legal tech, and enterprise.

Acronis Cyber Notary

Cloud-based file notarization and e-signing service from Acronis, using the Ethereum blockchain. Offered exclusively through service provider partners.

LTO Network

Dutch hybrid blockchain platform designed for GDPR-compliant decentralised workflows and business process integrity.

Rubrik

Enterprise data security and cyber resilience platform. Immutable, air-gapped backup and recovery for cloud, SaaS, and on-premise environments with Zero Trust Data Security.

Acsense

IAM Resilience Platform. Continuous immutable backup and one-click recovery for identity systems (Okta, AWS IAM, Azure AD). Recognised in Gartner’s 2025 Hype Cycle for Data Protection.

Data Integrity Fundamentals

Capability	ROOTKey	Guardtime	Woleet	OriginStamp	Acronis Notary	LTO Network	Rubrik	Acsense
Integrity Mechanism	SHA-256 anchored to Polygon / EBSI	KSI hash tree in global calendar	SHA-256 anchored to Bitcoin (Chainpoint)	SHA-256 anchored to BTC + ETH + Polygon	Cryptographic hash on Ethereum	Hash anchoring on hybrid chain	Immutable snapshots + ML anomaly detection	Immutable + air-gapped continuous backups
Near-Zero RTO	✅ On-chain proofs persist with no ROOTKey dependency	✅ KSI signatures verifiable offline	✅ Bitcoin-backed, verifiable forever	✅ Multi-chain redundancy	⚠️ Ethereum anchor public; UI depends on Acronis	⚠️ Public anchor; process resolution needs nodes	✅ Snapshot recovery in minutes	✅ One-click IAM recovery in minutes
Data Validity Timing	Real-time (RKP-1/3) or async (RKP-2)	Near-real-time (KSI calendar round)	Async (~10 min Bitcoin confirmation)	Async (multi-chain batching)	Near-real-time (Ethereum block time)	Async (process-event level)	RPO defined by backup policy	Continuous - 10-minute granularity
Validation is itself anchored	✅ Validation results are on-chain operations	❌	❌	❌	❌	❌	❌	❌
Version history with lineage	✅ Every version has its own anchor and links to prior	❌ Per-file anchoring only	❌	❌	❌	⚠️ Event-level only	✅ Snapshot-based time-machine recovery	✅ Any-point-in-time (10-min intervals)
Structured data integrity (row-level)	✅ Tables with per-record anchoring	❌ Object-level only	❌ File-level only	❌ File-level only	❌ File-level only	⚠️ Workflow event-level	✅ Broad - VMs, DBs, SaaS apps, files	⚠️ IAM / identity data only
Independent cryptographic proof	✅ Blockchain anchor - no vendor needed	✅ KSI - offline verifiable	✅ Chainpoint open standard	✅ Public chain explorers	⚠️ Partial - UI vendor-dependent	⚠️ Partial - needs LTO nodes	❌ Proprietary - requires Rubrik platform	❌ Proprietary - requires Acsense platform
Open standard / protocol	Proprietary RKP; public blockchain verification	Proprietary KSI	✅ Chainpoint open standard	✅ Open standard	Proprietary	✅ Open-source chain	❌ Proprietary	❌ Proprietary

Deployment & Infrastructure

Capability	ROOTKey	Guardtime	Woleet	OriginStamp	Acronis Notary	LTO Network	Rubrik	Acsense
REST API	✅	✅	✅	✅	✅	✅	✅	✅
On-Premise deployment	✅ Full on-premise support	✅ Enterprise deployments	❌	❌	❌	⚠️ Limited	✅ Hardware appliances + software	❌ Cloud / SaaS only
Container (Docker / Kubernetes)	✅ Native K8s support	⚠️ Enterprise only	❌	❌	❌	⚠️ Limited	✅	❌
MQTT / IoT protocol	✅ Native MQTT integration	❌	❌	❌	❌	❌	❌	❌
Air-gap support	✅ RKP-2 Sovereign EU - full air-gap	✅ Enterprise tier	❌	❌	❌	❌	✅ Rubrik Cloud Vault (logical air-gap)	✅ Air-gapped immutable backups
Native / ecosystem integrations	✅ CRM / ERP via engineering or partner ecosystem	❌	❌	❌	⚠️ Via MSP partners	❌	✅ Broad - Salesforce, AWS, GCP, Azure, VMware	✅ Okta, AWS IAM, Azure AD
Multi-environment (sandbox / prod)	✅	⚠️ Not publicly documented	❌	❌	❌	❌	✅	✅

Compliance & Data Sovereignty

Capability	ROOTKey	Guardtime	Woleet	OriginStamp	Acronis Notary	LTO Network	Rubrik	Acsense
GDPR compliance	✅ Hash-only on-chain; off-chain data deletable	✅ No data ingested; hash-only	✅ Hash-only; GDPR-certified	✅ Hash-only	✅	✅ Designed for GDPR; auto-erasure	✅ Automated PII masking; GDPR acceleration platform	✅ Historical access records; compliance mapping
Right to erasure compatible	✅ Off-chain deletable; on-chain hash only	✅ No personal data on-chain	✅	✅	✅	✅ Erasure by design	✅ Data masking + deletion	✅
EU data sovereignty	✅ Full - OVH EU cloud + on-premise + air-gap tiers	✅ European company; EU deployments	✅ French company; EU-hosted	⚠️ German company; cloud-only	⚠️ Swiss company; cloud-only	⚠️ Dutch company; cloud-dependent	✅ EU data centres; customer-selected region	✅ Customer-owned storage - BYO storage accounts
EU blockchain (EBSI)	✅ Sovereign EU protocols use EBSI	❌	❌	❌	❌	❌	❌ Not blockchain-based	❌ Not blockchain-based
eIDAS alignment	✅ Applicable for electronic evidence workflows	⚠️ Partial	⚠️ Partial	❌	❌	❌	❌	❌
NIS2 / DORA alignment	✅ NIS2 in progress	⚠️ Government-grade; not published	❌	❌	❌	❌	✅ Cyber resilience aligned	✅ DORA compliance referenced
ISO 27001	In progress	⚠️ Not publicly certified	❌	❌	⚠️ Parent company certified	❌	✅ Certified	⚠️ Not publicly confirmed

Trust Model & Verification

Capability	ROOTKey	Guardtime	Woleet	OriginStamp	Acronis Notary	LTO Network	Rubrik	Acsense
Zero-trust architecture	✅ Neither data owner nor ROOTKey can alter anchored record	✅ KSI is keyless - no trusted authority needed	✅ Bitcoin-backed; no Woleet trust needed	✅	⚠️ Some operations depend on Acronis	⚠️ Hybrid model has centralised components	✅ Zero Trust Data Security (immutable, role-scoped)	✅ Zero Trust aligned; immutable backups
Independent verification (no vendor)	✅ Polygonscan / EBSI - no ROOTKey infrastructure	✅ Offline KSI verifier tools	✅ Chainpoint; Bitcoin explorer	✅ Public blockchain explorers	⚠️ Ethereum public; UI vendor-dependent	⚠️ Public chain + LTO node dependency	❌ Requires Rubrik platform	❌ Requires Acsense platform
Blockchain	Polygon (Mainnet) + EBSI	KSI (proprietary hash calendar)	Bitcoin	Bitcoin + Ethereum + Polygon	Ethereum	LTO Chain (→ Base)	❌ None	❌ None
No single point of failure	✅ Decentralised Polygon PoS network	✅ Distributed global calendar	✅ Bitcoin network	✅ Multi-chain	⚠️ Ethereum PoS + Acronis dependency	⚠️ Hybrid dependency	✅ Distributed cloud architecture	✅ Cross-region failover
Vendor lock-in risk	Low - on-chain proofs verifiable forever	Low - offline verification	Very low - open standard	Low - open standard	Moderate - UI / API dependency	Low - open source	Moderate - proprietary backup format	Moderate - platform-dependent

Use Case Coverage

Use Case	ROOTKey	Guardtime	Woleet	OriginStamp	Acronis Notary	LTO Network	Rubrik	Acsense
Document integrity & audit trails	✅	✅	✅	✅	✅	⚠️	⚠️ Backup, not cryptographic proof	❌
Regulatory audit trails	✅	✅	⚠️	⚠️	❌	⚠️	✅ Compliance reporting	✅ IAM access history
IoT / Industrial data integrity	✅ Native MQTT	⚠️ Limited	❌	❌	❌	❌	❌	❌
Supply chain integrity	✅	✅	⚠️	⚠️	❌	✅	⚠️	❌
Healthcare data integrity	✅	✅	⚠️	✅	❌	⚠️	✅ HIPAA-aligned backup	⚠️ IAM in healthcare contexts
Software / build integrity	✅	✅	✅	✅	❌	❌	⚠️	❌
AI output integrity	✅	⚠️	⚠️	⚠️	❌	❌	❌	❌
High-frequency / high-volume data	✅ RKP-2 off-chain	✅ KSI scales linearly	⚠️	⚠️	❌	⚠️	✅ Enterprise backup scale	✅ Continuous IAM events
Ransomware recovery	⚠️ Proofs persist; data recovery out of scope	❌	❌	❌	❌	❌	✅ Primary use case	⚠️ IAM systems only
IAM / Identity resilience	❌	❌	❌	❌	❌	❌	⚠️ SaaS apps including identity	✅ Primary use case

Where ROOTKey is Differentiated

Protocol Architecture

ROOTKey offers three formally defined protocols (Full On-Chain, Off-Chain, Hybrid) with nine sovereignty tiers. No other platform in this comparison provides this level of architectural choice within a single product.

MQTT & IoT

ROOTKey is the only platform in this comparison with native MQTT support - purpose-built for IoT, industrial, and OT/IT convergence use cases.

Air-Gap Deployment

Together with Guardtime and Rubrik, ROOTKey supports fully air-gapped deployments - combining cryptographic proof with on-premise data sovereignty, critical for defence, healthcare, and critical infrastructure.

Anchored Validation Records

In ROOTKey, validation events are themselves anchored on-chain - creating an immutable audit log not just of the data, but of every verification performed. No other platform in this comparison does this.

EU Blockchain (EBSI)

ROOTKey Sovereign EU protocols anchor to EBSI - the European Blockchain Services Infrastructure - the only platform in this comparison to support EU-sovereign blockchain anchoring.

Structured Data (Tables)

ROOTKey supports row-level integrity for structured datasets through its Tables primitive, anchoring each record individually. All other platforms in this comparison operate at file, object, or snapshot level.

This comparison reflects publicly available information as of 2025. Vendor capabilities evolve - contact the respective vendors for the most current feature and compliance status. For ROOTKey-specific guidance, contact [email protected] or request a technical briefing.

Introduction

Quickstart

Connectors

Ecosystem Guides

Protocols

RKP-1 - Full On-Chain

RKP-2 - Off-Chain

RKP-3 - Hybrid

Data Sovereignty

Deployment Methods

Developer Resources

Additional Resources

Competitive Comparison

Platforms Compared

ROOTKey

Guardtime

Woleet

OriginStamp

Acronis Cyber Notary

LTO Network

Rubrik

Acsense

Data Integrity Fundamentals

Deployment & Infrastructure

Compliance & Data Sovereignty

Trust Model & Verification

Use Case Coverage

Where ROOTKey is Differentiated

Protocol Architecture

MQTT & IoT

Air-Gap Deployment

Anchored Validation Records

EU Blockchain (EBSI)

Structured Data (Tables)

​Platforms Compared

ROOTKey

Guardtime

Woleet

OriginStamp

Acronis Cyber Notary

LTO Network

Rubrik

Acsense

​Data Integrity Fundamentals

​Deployment & Infrastructure

​Compliance & Data Sovereignty

​Trust Model & Verification

​Use Case Coverage

​Where ROOTKey is Differentiated

Protocol Architecture

MQTT & IoT

Air-Gap Deployment

Anchored Validation Records

EU Blockchain (EBSI)

Structured Data (Tables)

Platforms Compared

Data Integrity Fundamentals

Deployment & Infrastructure

Compliance & Data Sovereignty

Trust Model & Verification

Use Case Coverage

Where ROOTKey is Differentiated