Company
Operated by L-ark Inc. / 株式会社L-ark
Evidentia is operated by L-ark Inc., a company based in Tokyo, Japan. The product is publicly available at https://www.evidentiaaiapp.com.
Contact us: hello@evidentiaaiapp.com
About Evidentia
AI Verification Infrastructure for trustworthy enterprise AI.
Evidentia is building a Proof Layer for AI systems: infrastructure that helps companies create, verify, and export independently verifiable Proof records for AI outputs and usage records without publishing raw customer data.
Founder / team
Kazuki Toyota, Founder
Evidentia is currently founder-led by Kazuki Toyota. Kazuki is responsible for product direction, customer development, market positioning, and go-to-market execution.
The product is being built with a lean, founder-led approach focused on validating the need for independently verifiable proof infrastructure for AI systems.
Product
Enterprise AI Evidence Infrastructure
Evidentia is AI Proof Infrastructure for organizations that need independently verifiable records of AI outputs, usage events, and AI-assisted workflows.
It helps teams create Proof records with event hashes, signatures, timestamps, public verification metadata, and external anchor state without exposing raw customer payloads.
Evidentia is not a Web3 product, crypto product, generic logging tool, or legal-proof service.
- Creates tamper-evident Proof records for AI outputs and usage records.
- Records event_hash, signature, timestamp, public verification metadata, and anchor state without exposing raw payload.
- Provides public verification pages and export packages so reviewers can independently inspect proof integrity.
- Supports API-first integration for B2B SaaS, compliance, risk, and operations teams.
Business model
B2B SaaS / API infrastructure
Evidentia is a digital-native B2B SaaS and API infrastructure product for teams that need verifiable records of AI usage.
- Evidentia provides subscription and usage-based access to AI proof infrastructure.
- Companies can integrate Evidentia through API-first workflows to create, verify, and review Proof records for AI usage events.
- Developer access is available during Open Beta for evaluation and integration testing.
- Paid Foundation and Compliance plans are offered on a request basis during Open Beta.
- Enterprise deployments, higher-volume usage, and custom trust requirements can be discussed directly with the operator.
Open Beta
Publicly accessible for evaluation
Evidentia is currently in Open Beta. Reviewers can inspect a public sample Proof, read the developer documentation, and contact the operator for paid plan access, partnership review, or enterprise evaluation.
Verification boundaries
What Evidentia does and does not prove
Evidentia helps verify Proof record integrity and consistency with recorded anchor metadata. It proves the record, not the truth of the AI output.
- Evidentia does not prove that an AI output or business decision was correct.
- Evidentia does not prove that submitted input was factually true.
- Evidentia does not guarantee legal admissibility.
- Evidentia does not guarantee regulatory compliance outcomes.
- Evidentia does not guarantee certified security.
- Evidentia does not guarantee audit approval.
- Evidentia verifies Proof record integrity and consistency with recorded anchor metadata.