PROOF-OF-LIFE
Prove who they are
Identity verified by advanced biometrics, bound to a living holder — never to a password or plastic document.
Government & Sovereign Infrastructure
Trust-as-a-Service for sovereign nations.
Sieve is the white-label trust layer powering public infrastructure: biovital identity, non-custodial data exchange and forensic e-signature — deployed under your agency's brand, with zero CapEx and zero PII custody.
≤0ms
per verification
<0.000000%
fraud rate
+0
countries covered
TRUSTED INFRASTRUCTURE LAYER ·
SOC 2 TYPE IIISO/IEC 27001GDPR · LGPDeIDAS · ESIGNAML/CFT · OFAC
01 · The Trust Layer
The confidence layer of the digital state.
Sieve delivers irrefutable proof that a real, living human is behind every digital act — with no password, no friction, and no identity cost to integrate.
CONSENT-NATIVE
Exchange with consent
The citizen owns and shares their data sovereignly — granular, revocable, auditable. Sieve only relays when needed.
NON-CUSTODIAL
Zero data liability
Non-custodial architecture: data stays with the holder. No honeypot, no breach surface, no broker economy.
ZERO FORMSDATALESS SIGN-INCARDLESS CHECKOUTCOUNTERLESS CHECK-INFORENSIC E-SIGN
02 · Advanced biometricsFour proprietary engines.
Four proprietary engines.
One living signal.
Verification runs on a standard device camera and attests that a living, present human is behind every digital action. Edge-processed in milliseconds, with no special hardware.
rPPG
Biovital proof-of-life
Reads facial blood-pulse via standard camera. Anti-photo, anti-video.
VRC
Vitality Registry Chain
Detects coercion through pulse variability and micro-expressions.
3D Match
3D Face Match
Tridimensional facial correspondence against the sovereign identity.
Anti-DF
Anti-Deepfake AI
Layered defense against deepfake, presentation and injection attacks.
≤0ms
per verification
<0.000000%
fraud rate
+0
data layers
Edge
on-device processing
03 · Sovereign identity
SIDI — a portable identity owned by the citizen, not the platform.
Self-Sovereign Interchangeable Digital Identity.One identity, verified once by advanced biometrics, that flows between public and private services with a single login — and is never reconstructed without a live biovital match.
- Portable and controlled by the citizen — not by any platform
- Bound to the living holder by biovital markers (rPPG + VRC)
- Single sign-on: "Sign in with Sieve" — zero phishing, pairwise OIDC
- Granular, revocable, fully auditable consent
- Sharded storage with Zero-Knowledge Proofs and Merkle anchoring
04 · One button. One SDK.
One FaceScan unlocks every act of trust.
The Sieve Button is a single SDK that exposes access, share, sign, pay, verify and proof — all behind one biovital action. Deployed white-label, under your agency's brand.
ACCESS
Passwordless login. No OTP, no takeover.
SIGN
Forensic e-signature with biovital proof.
CHECK-IN
Counterless, queueless, verified entry.
BOOK
Onboarding and KYC in a single FaceScan.
FILL · SIGN · LOGIN · PROTECT · CHECKOUT · QUICKPAY · SHARE
05 · Applications
One infrastructure. The entire state.
Deploy Sieve as the trust layer across ministries, agencies and state enterprises — or operate it as a white-label distributor for the wider public and private market.
CITIZEN
National Digital ID
Interchangeable identity layer for the digital citizen — single sign-on across every public service.
Explore productBORDERS
Border & Immigration
e-Visa, walk-through e-Gates, NFC/MRZ passport reading with real-time Interpol cross-check.
Explore productTENDERS
Public Procurement
Verified bidder identity and biovital e-signature — ends collusion and proxy bidders in tenders.
Explore productHEALTH
Health & Pharmacy
Biometric dispensing for public pharmacy programs and biovital signature on the digital health card.
Explore productAVIATION
Aviation & Civil Aviation Authority
Single biovital token from check-in to boarding — your face is the boarding pass.
Explore productWELFARE
Social Security
Remote proof-of-life for pensioners from any standard device — no agency visit, no fraud window.
Explore productPOSTAL
Postal & Logistics
Digital delivery receipts, smart-locker walk-through pickup and biometric customs release.
Explore productTOURISM
Tourism & Hospitality
Mandatory hotel guest registration auto-filled by KYC FaceScan — fully compliant, zero forms.
Explore product06 · Compliance
Full compliance. Zero data custody.
Sieve is engineered under privacy-by-design and security-by-design: data minimization (token return instead of PII), AES-256 end-to-end encryption, Zero-Knowledge Proofs and revocable consent. The architecture meets the world's principal identity and data-protection standards by construction.
DATA ROLES
Public agency acts as Data Controller (public purpose). Sieve operates strictly as Data Processor, returning approval tokens — never PII at rest. DPA, incident notification and audit trails included.
GDPR✓
HIPAA✓
AML / CFT✓
OFAC✓
FATF✓
eIDAS✓
ESIGN✓
UETA✓
ISO/IEC 27001✓
SOC 2 Type II✓
Privacy by Design✓
Security by Design✓
07 · Partnership model
White-label by design. Sovereign by contract.
Sieve operates entirely behind your agency's brand. You distribute, integrate and govern; we provide and maintain the engine. No CapEx, no technology transfer, no PII custody — with revenue share on every successful verification.
WHITE-LABEL
Your brand on the front, Sieve engine behind.
REVENUE SHARE
Per successful transaction. Zero CapEx.
NON-CUSTODIAL
Zero PII liability for the partner.
SOVEREIGN
Deployed within the partner's jurisdiction.
Whitepaper · Restricted access
The Sieve Trust-as-a-Service whitepaper.
Technical and architectural overview of SIDI — biovital identity, non-custodial trust, sovereign deployment model and the proprietary verification pipeline. Available to qualified government and public-sector stakeholders.
- →Architecture & cryptographic model
- →Biovital signal pipeline
- →Deployment & sovereignty guarantees
- →Intellectual property & revenue model
REGISTRATION REQUIRED
Request the whitepaper
All fields are mandatory. A copy will be sent to your email and available for immediate download.
Sovereign briefing
Bring Sieve to your government.
Confidential session for ministries, state enterprises and sovereign agencies. We share the architecture, the proprietary inventions and the deployment path under your brand.
REQUEST BRIEFING
Contact & sovereign meeting scheduling