Https Card - Internet Identity Card Ltd This document describes the Internet Identity Card (IIC) credential format, version 9.0: a digital identity credential implemented as a single self-contained HTML file that can be generated, stored, transferred, and cryptographically verified entirely offline, without servers, brokers, or network connectivity. Identity data is encrypted with AES-256-GCM under keys derived by Argon2id; authenticity is provided by a hybrid signature combining ECDSA P-256 with ML-DSA-65 (NIST FIPS 204) under a crypto-agile suite registry; and integrity is provided by an embedded SHA-256 self-check over a canonical serialization of the document. Each exported credential embeds its own verification engine, so verification requires only a standard web browser. This document is published for informational purposes, to describe a deployed format whose underlying constructions are disclosed as open prior art.