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.Documentation Index
Fetch the complete documentation index at: https://docs.rootkey.ai/llms.txt
Use this file to discover all available pages before exploring further.
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 contact@rootkey.ai or request a technical briefing.