Lenz
Lenz is an audit-grade fact-checking API for AI-drafted text, built for teams that need to check factual claims before customers or clients see them. It reads a draft, memo, model answer, or page of copy, extracts the factual statements that can be checked against independent public sources, and returns a result for each. Its workflow follows four API primitives: extract verifiable claims, assess them in bulk with a fast multi-model verdict, escalate uncertain statements to a full verification, and ask follow-up questions grounded in the verification. Full verification runs through a structured five-stage pipeline of framing, research, debate, panel review, and conclusion. Lenz searches public sources, scores evidence for authority, relevance, and recency, has models from multiple vendors argue both sides of a claim, and returns a verdict, confidence score, cited sources, and reasoning trace that users can audit.
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The MCP Census
The MCP Census is a web-based evidence-checking service for developers and teams that use Model Context Protocol (MCP) servers. It compares server listings with public signals such as repository identity and status, package availability, hosted endpoint health, registry records, and vulnerability advisories. Users can look up a server or submit an MCP configuration and receive PASS, REVIEW, BLOCK, or UNKNOWN results under a versioned policy, with reasons and supporting evidence. The service is accessible through a website, REST API, and remote MCP server, and can be used in agent workflows and CI checks for configuration changes. Setup guides connect it to coding agents and developer tools. MCP Census is an initial public-evidence gate, not a malware scanner, penetration test, or guarantee that a server is safe to run.
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BitPolaris Proof of Reserves Kit
Proof of Reserves Kit is a reserve-verification application for cryptocurrency exchanges, brokers and custodians that need evidence for customer-balance disclosures or reserve audits. It imports liability balances from CSV, read-only SQL queries or an internal HTTP endpoint, then commits them to a Merkle sum tree. It checks declared wallet balances across EVM networks, TRON, Bitcoin, Solana and XRP Ledger at recorded block or ledger positions, including Bitcoin HD wallets via extended public keys. Read-only connectors collect balances from Fireblocks vaults and Binance spot and funding accounts. The software verifies supported wallet-ownership signatures and produces daily Ed25519-signed snapshots, auditor reports and CSV annexes in English and Turkish. Customers can check individual inclusion proofs through a branded verification page. It is available as BitPolaris-hosted service or installed on customer servers; it does not hold keys or move funds.
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ProofSign
ProofSign is an electronic-signature and document-verification platform for individuals, professionals, teams and organizations signing finished PDFs. Users upload documents, invite signers and approvers, and run single- or multi-party workflows. Participants verify email access with a one-time passcode. ProofSign records signing intent, participant actions and timestamps in an audit trail. Completed PDFs include a SHA-256 fingerprint and evidence recipients can check through a public verifier without an account. The service supports agreements and finalized documents that need an auditable signing record and a way to detect later file changes. Its free plan allows single-party signing and verification for up to 10 documents monthly under fair use. Users can earn credits through onboarding and signing milestones. The Pro plan includes a verification API.
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