Multi-modal Proofs is a proof library product by Silence Laboratories designed to enhance trust in authentication systems by enabling a rich set of cryptographic or behavioral proofs that complement existing Multi-Factor Authentication (MFA) implementations. The product is positioned as an extension to contemporary MFA solutions provided by Identity and Access Management (IAM) platforms, rather than a standalone replacement. It introduces a concept called "Silent Auth," which aims to provide usable and secure support for MFAs by generating proofs derived from multiple modalities — potentially combining behavioral, biometric, or contextual signals — without requiring explicit user interaction. The product targets sectors such as healthcare, mobility, and online trading, as referenced in associated blog content. A demo booking option is available for prospective customers through the company's website.