Screenshots aren't proof.Lexato is.
Turn any online content into certified digital evidence with blockchain and ICP-Brasil timestamp. Legal validity accepted in courts across Brazil.
Trust validated by market leaders
Your screenshot proves nothing.
With the rise of generative AI, Brazilian courts are increasingly strict. Screenshots, PDFs and recordings without digital certification are challenged and invalidated every day in legal proceedings.
Anyone can edit a screenshot in seconds.
Free tools and generative AI fabricate entire WhatsApp conversations, emails and documents indistinguishable from originals. If the opposing party presents a tampered version, how do you prove which one is real?
We agreed on $5,000 for the service
14:32Perfect, go ahead.
We never agreed on anything
14:32I don't recognize this.
Your capture has nothing to prove it's real.
No SHA-256 hash, no timestamp, no source IP, no chain of custody. To a judge, it's just an image file — and the opposing party only needs to claim it was fabricated by AI.
The post was deleted. The evidence went with it.
Deleted profiles, pages taken offline, revoked messages, stories that expire in 24h. By the time you realize you needed that evidence, it no longer exists. There is no second chance.
You took the screenshot. The court dismissed it.
The opposing party challenged its authenticity and the judge demanded technical proof. No hash, no timestamp, no chain of custody — your screenshot was thrown out. Months of litigation lost over evidence that lacked certification.
You need evidence that withstands any challenge.
Lexato certifies your digital evidence with blockchain registration, ICP-Brasil timestamp and SHA-256 hash — making it legally irrefutable in any court in Brazil.
The Technology Behind Every Evidence
Six layers of protection ensuring authenticity, integrity and legal validity across the entire national territory.
Validade Jurídica em Todo o Brasil
Evidências digitais com cadeia de custódia íntegra, em conformidade com a norma ISO/IEC 27037 e os artigos 158-A a 158-F do Código de Processo Penal. Procedimentos alinhados ao protocolo PISA (Preservação, Identificação, Seleção e Aquisição de evidências eletrônicas). Aceita como prova em todos os tribunais do território nacional.
Registro em Blockchain Imutável
Cada evidência digital é registrada simultaneamente em três redes blockchain — Polygon, Arbitrum e Optimism — garantindo prova de existência permanente e à prova de adulteração.
Criptografia AES-256 de Nível Militar
Proteção de evidências digitais com criptografia AES-256, TLS 1.3 em trânsito e hash SHA-256 para verificação de integridade. Segurança equivalente à utilizada por instituições financeiras e órgãos governamentais.
Carimbo de Tempo ICP-Brasil
Carimbo de tempo com fé pública nos termos da lei, conforme RFC 3161, emitido por Autoridade Certificadora credenciada pelo ITI. Data e hora incontestáveis em todo o território nacional.
Servidores AWS em São Paulo
Hospedagem na Amazon Web Services, líder mundial em computação em nuvem. Data centers na região sa-east-1 em São Paulo garantem latência inferior a 25ms e soberania total dos dados.
Relatório Forense Completo
Cada evidência gera um relatório PDF/A-3 autocontido com metadados forenses, hash de integridade, carimbo de tempo, screenshot, HTML original e cadeia de custódia completa. Um documento único, pronto para apresentação judicial, sem depender de sistemas externos.
Metadados forenses
Integridade
Carimbo de tempo
Anexos embutidos
The Technology Behind Every Evidence
Six layers of protection ensuring authenticity, integrity and legal validity across the entire national territory.
Registro em Blockchain Imutável
Cada evidência é registrada em três redes blockchain — Polygon, Arbitrum e Optimism — garantindo prova de existência permanente.
Validade Jurídica em Todo o Brasil
Conformidade com ISO/IEC 27037, CPP 158-A a 158-F e protocolo PISA. Aceita como prova em todos os tribunais.
Criptografia AES-256
Proteção com AES-256, TLS 1.3 em trânsito e hash SHA-256 para verificação de integridade.
Carimbo de Tempo ICP-Brasil
Carimbo com fé pública conforme RFC 3161, emitido por Autoridade Certificadora credenciada pelo ITI.
Servidores AWS em São Paulo
Data centers na região sa-east-1 em São Paulo. Latência inferior a 25ms e soberania total dos dados.
Relatório Forense Completo
PDF/A-3 autocontido com metadados forenses, hash, carimbo de tempo, screenshot e cadeia de custódia completa.
Metadados
Anexos
Defense in Depth
6 Independent Cryptographic Protection Layers
Every digital evidence passes through six independent protection layers. Even if one layer is compromised, the remaining layers ensure the integrity and legal validity of the document.
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$ 89.90.
Instant
Capture and certify in seconds. No appointments, queues or trips to the notary.
Immutable
Permanent registration on Polygon, Arbitrum and Optimism 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.
Accepted in Courts Throughout Brazil
Evidence certified by Lexato is grounded in Brazilian legislation and accepted as proof in judicial proceedings at all levels.
Guaranteed Legal Validity
Each Lexato certification is grounded in current federal legislation, with blockchain registration and ICP-Brasil timestamp. Accepted as evidence in judicial proceedings at all levels.
All levels
Courts
3 federal laws
Legal basis
Blockchain + ICP-Brasil
Triple guarantee
Legal Foundation
Marco Civil da Internet
Law No. 12.965/2014
Establishes principles for internet use in Brazil and recognizes electronic records as means of evidence.
Code of Civil Procedure
Art. 369 and 411
Admits electronic documents as evidence, provided their authenticity and integrity are guaranteed.
MP 2.200-2/2001
ICP-Brasil
Establishes the Brazilian Public Key Infrastructure, granting legal validity to digital documents.
Types of Proceedings
Civil Proceedings
- Moral damages compensation claims
- Consumer rights
- Intellectual property
- Unfair competition
Labor Proceedings
- Workplace harassment
- Overtime (system records)
- Improper communications
- Just cause evidence
Criminal Proceedings
- Crimes against honor
- Threats and extortion
- Digital fraud
- Data 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.
What only Lexato offers
Technologies and features that no other digital certification service in Brazil has.
3 Blockchains
Open Source
Post-Quantum
FIPS-140-3
S3 Object Lock
24/7 Support
Lexato exclusive advantages:
Want to see the full comparison?
See Full ComparisonComparison based on public information available as of January 2025. Prices and features may vary.
Users Recommend
See how Lexato helped people and professionals protect their rights with certified digital evidence.
"I suffered workplace harassment and the messages were deleted from the group. But I had already certified everything with Lexato. I won the case and was compensated."
Lucas SilvaSão Paulo, SP"I used to spend R$ 400 on notarial deeds for each case. With Lexato, I do it in seconds with the same legal validity. It changed our firm's routine."
Fernanda SantosSantos & Barros Lawyers"My brand was copied by a competitor. I certified all the evidence from their website and won the intellectual property lawsuit."
Ricardo OliveiraOliveira Trademarks & Patents"I received threats via messages and needed proof before they were deleted. In less than a minute I certified everything from my phone. The aggressor was identified."
Camila RochaCuritiba, PR"I certify contracts and proposals sent by email. It has already prevented two disputes with clients who denied receiving the documents."
Marcos AlmeidaGrupo Almeida Construções"Someone created a fake profile with my photos. I certified all the pages before they were taken down and identified the person responsible in court."
Juliana CostaPorto Alegre, RS
"In forensic analysis, chain of custody is everything. Lexato delivers SHA-256 hash, ICP-Brasil timestamp and blockchain in a single technical report."
Dr. André MendesMendes Forensic Consulting"My ex posted edited private conversations to defame me. I certified the originals with Lexato and proved the tampering. I got a restraining order."
Patrícia LimaSalvador, BA"Our e-commerce suffered a defamation campaign with fake reviews. We certified everything and got a court-ordered removal in 48 hours."
Thiago NascimentoNascimento Tech Ltd."A supplier changed the contract terms after signing and denied it. I had the original version certified. We resolved it without going to court."
Renata DuarteDuarte & Associates Consulting"I record the state of client websites before each delivery. Never had another argument about what was or wasn't implemented. It's now routine."
Felipe CardosoFreelancer, Campinas, SP"An offensive post against my client was deleted. But I had already certified the entire page with metadata and exact timestamp. Case won."
Dra. Marina VasconcelosVasconcelos, Braga & Lopes Lawyers
Got questions?
Everything you need to know about Lexato before getting started.