Lexato turns any digital content into legally valid proof — in seconds, no notary required.
Trust validated by market leaders
With the rise of AI, common screenshots have lost credibility — and prints, PDFs, or recordings without certification are dismissed every day.
AI recreates conversations, emails and documents identical to the originals. Without technical certification, any screenshot can be fabricated — and no one can tell the difference.
We agreed on $5,000 for the service
14:32Perfect, go ahead.
We never agreed on anything
14:32I don't recognize this.
A common screenshot doesn't record when, where, or how it was taken. Without those guarantees, it's just an image — vulnerable to any claim of fraud.
Deleted profiles, removed posts, stories that expire in 24 hours. Digital content disappears without warning — and when you need the proof, it's already gone.
Without technical certification proving integrity, the judge dismisses the capture. Months of litigation lost over evidence no one can validate.
Six layers of protection that guarantee authenticity, integrity and legal validity in any Brazilian court.
Every proof is recorded simultaneously on three independent blockchains. A permanent record of existence, beyond the reach of any tampering.
The same encryption used by banks and governments, applied to your proof. Encrypted at rest and in transit, from upload to final report.
Legally binding timestamp by a Certification Authority accredited by ITI. Accepted in any Brazilian court.
Every step of the proof runs in an isolated environment, with a fully traceable chain of custody. No human intervention between capture and report.
Evidence stored on AWS servers in Brazil (sa-east-1). Data under Brazilian legal sovereignty, beyond the reach of foreign jurisdictions.
A single PDF/A-3 with hash, timestamp, screenshot, HTML and chain of custody. Ready to file in the case, with no external dependencies.
Forensic metadata
Integrity
Carimbo de tempo
Embedded attachments
Six layers of protection that guarantee authenticity, integrity and legal validity in any Brazilian court.
Every piece of evidence is registered on three blockchain networks (Polygon, Arbitrum, Optimism) — permanent, tamper-proof proof of existence.
Certifications recognized by the Brazilian Judiciary, grounded in the Marco Civil da Internet and the Code of Civil Procedure.
Evidence protected with AES-256 at rest, TLS 1.3 in transit, and SHA-256 hash for integrity verification.
Timestamp with legal authority, compliant with RFC 3161, issued by a Certification Authority accredited by ITI.
Technical processing in an isolated environment. Evidence integrity is preserved from capture to storage.
Hosting on Amazon Web Services, with data centers in the sa-east-1 region in São Paulo — data within Brazilian territory.
Every piece of evidence generates a self-contained PDF/A-3 report with forensic metadata, integrity hash, timestamp and chain of custody.
Forensic metadata
Embedded attachments
Defense in Depth
Each digital evidence goes through six layers of protection that operate independently. Even if one layer is compromised, the others guarantee the integrity and legal validity of the document.
Lexato-certified evidence is based on Brazilian legislation and accepted as proof in legal proceedings in all instances.
Each Lexato certification is based on current federal legislation, with blockchain registration and ICP-Brasil timestamp. Accepted as proof in legal proceedings in all instances.
All instances
Courts
3 federal laws
Legal basis
Blockchain + ICP-Brasil
Triple guarantee
Law No. 12.965/2014
Establishes principles for internet use in Brazil and recognizes electronic records as means of evidence.
Art. 369 and 411
Admits electronic documents as evidence, provided their authenticity and integrity are guaranteed.
Art. 158-A to 158-F
Defines the chain of custody and procedures for preserving digital evidence in criminal offenses.
ICP-Brasil
Establishes the Brazilian Public Key Infrastructure, granting legal validity to digital documents.
The admissibility of digital evidence depends on the assessment of the competent court in each specific case. Lexato provides the technical elements that ground the authenticity and integrity of the evidence.
Unique technologies and functionalities in the Brazilian digital certification market.
Exclusive Lexato advantages:
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See Full ComparisonInformation based on public data collected in April 2025. Prices and features may vary. Please check the official websites for updated information. Lexato is not responsible for subsequent changes. Comparison conducted independently for informational purposes.
See how Lexato has 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
Everything you need to know before you start using Lexato.
Our technical team is ready to help you with any issue.