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Capture.Certify.Prove.

Protect conversations, posts, agreements, and any digital evidence with immutable blockchain registration and ICP-Brasil timestamp. Instant legal validity, accepted in courts throughout Brazil. This is Lexato.

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Live demonstration

Stop taking screenshots.
Start creating evidence.

Anyone can alter text, date, and time in a screenshot within seconds. With Lexato, your evidence is preserved with forensic integrity, ICP-Brasil timestamp and blockchain registrationaccepted in all courts in Brazil.

WITHOUT LEXATO
WITH LEXATO
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João Carlos

João Carlos

online

15 DE JANEIRO DE 2026

Hi! I saw your Honda Civic 2020 ad. You're selling for R$85,000, right?

14:28

That's right! Very well maintained car, single owner.

14:29

Looks great! But I need to know: has it ever been in an accident or had any issues? It's very important to me.

14:30

Não, nunca teve nenhum problema. Carro em perfeito estado, só uso para trabalho.

14:32

Perfect! I'll make the transfer and pick it up tomorrow. Thanks!

14:35
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Free to start • No credit card required

Layered Security

Certification Process

Multiple layers of protection ensuring authenticity and forensic integrity of each piece of evidence.

e3b0c442...
98fc1c14...
SHA-256
STATUS: SECURE
HASH

SHA-256 Hash

Unique and immutable digital fingerprint of the captured content. Any change, however small, generates a completely different hash, guaranteeing total evidence integrity.

e3b0c44298fc1c149afbf4c8996fb924...
metadata_log.json
>IP: 201.45.122.98
>User-Agent: Mozilla/5.0...
>Res: 1920x1080
>Time: 14:30:59.002
STATUS: SECURE
METADATA

Preserved Metadata

Original URL, source IP, User-Agent, screen resolution and other technical data are preserved, proving authenticity and maintaining chain of custody.

Complete chain of custody

Why Choose Lexato?

Replace expensive and slow notary deeds with instant digital certification with the same legal validity.

Legal Validity

Evidence certified with blockchain registration and ICP-Brasil timestamp, accepted in court proceedings.

90% Cheaper

Save up to 90% compared to traditional notary deeds. Certification starting at R$ 9.90.

Instant

Capture and certify in seconds. No appointments, queues or trips to the notary.

Immutable

Permanent registration on Polygon and Arbitrum blockchain. Impossible to alter or forge.

Public Verification

Anyone can verify the authenticity of the evidence through the public verifier.

Privacy

Your data is encrypted and protected. Full compliance with LGPD.

Generated Documentation

Each certification generates a complete set of documents ready for use in legal proceedings, forensic analysis, and verifications.

Certificate of Authenticity

Official document with legal validity

Instant verification

Digitally certified

e3b0c44298fc1c14...
ICP-Brasil
0x7f9e8a2b3c4d...
Ready to attach
Verifiable online
Court accepted

All documents are automatically generated after each certification.

Immediate download
Public verification
Secure storage

Cutting-Edge Technology

We combine the best cryptography, blockchain and digital certification technologies to ensure the forensic integrity of your evidence.

Cryptography

SHA-256

Cryptographic hash algorithm standard for Bitcoin and worldwide security systems.

AES-256

Military-grade encryption for data protection in transit and at rest.

256-bit SSL
LGPD Compliant
99.9% Uptime
Multi-chain
Recognized Legal Validity

Accepted in Courts Throughout Brazil

Evidence certified by Lexato is grounded in Brazilian legislation and accepted as proof in judicial proceedings at all levels.

Legal Foundation

Types of Proceedings

Moral damages compensation claimsConsumer rightsIntellectual propertyUnfair competitionWorkplace harassmentOvertime (system records)Improper communicationsJust cause evidenceCrimes against honorThreats and extortionDigital fraudData breach

The admissibility of digital evidence depends on the analysis of the competent court in each specific case. Lexato provides the technical elements that support the authenticity and integrity of the evidence.

Exclusive Features

What only Lexato offers

Technologies and features that no other digital certification service in Brazil has.

Exclusive
3blockchains

3 Blockchains

Exclusive
100%open source

Open Source

Exclusive
ML-DSA-87algoritmo

Post-Quantum

Exclusive
FIPS140-3

FIPS-140-3

Exclusive
S3object lock

S3 Object Lock

Exclusive
24/7suporte

24/7 Support

Lexato exclusive advantages:

No other service has 3 blockchains
No other service is open source
No other service has post-quantum cryptography
No other service has FIPS-140-3 certification

Want to see the full comparison?

See Full Comparison

Comparison based on public information available as of January 2025. Prices and features may vary.

Solutions for Everyone

Areas of Practice

Anyone who needs to document digital content with legal validity. From lawyers to ordinary citizens.

Lawyers
Victims of Cybercrimes
Companies
Freelancers
Individuals
NGOs and Activists
Researchers
Journalists

Anyone who needs to document digital content with legal validity. From lawyers to ordinary citizens.

Infrastructure

Platform integrated with leading security and digital certification technologies.

Total Security

Military-grade AES-256 encryption to protect all your digital evidence in transit and at rest.

01

Immutable Blockchain

Permanent registration on Polygon and Arbitrum. Once registered, impossible to alter or remove.

02

ICP-Brasil

Timestamp issued by a Certifying Authority accredited by ITI, according to RFC 3161.

03

LGPD Compliant

Full compliance with the General Data Protection Law, ensuring privacy and security.

04

AWS Brazil

Infrastructure hosted on Amazon Web Services servers located in São Paulo.

05

Performance

Maximum resource optimization to ensure speed and stability in all operations.

06

All technologies working together

Users Recommend

See how Lexato helped people and professionals protect their rights with certified digital evidence.

  • "I was able to prove the workplace harassment I suffered. The messages were deleted from the group, but I had already certified everything with Lexato."
    Avatar of Lucas SilvaLucas SilvaSão Paulo, SPLabor Lawsuit
  • "As a lawyer, Lexato changed the way I work. I used to spend R$ 400 on notarial deeds, now I do it in seconds with the same validity."
    Avatar of Fernanda SantosFernanda SantosRio de Janeiro, RJCriminal Law
  • "My brand was copied by a competitor. I certified all the evidence from their website and won the intellectual property lawsuit."
    Avatar of Ricardo OliveiraRicardo OliveiraBelo Horizonte, MGIntellectual Property

Your digital evidence deserves real protection

Start certifying evidence with legal validity, cutting-edge encryption, and blockchain registration.

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