Confirm a credential was primary-source verified by Conceptual Health University and anchored, tamper-evident, on the master chain. You don't trust us — your browser recomputes the hash and verifies the University's signature itself, with clean-room CH crypto compiled to WebAssembly.
ch_chu_wasm.wasm is CH clean-room SHA3-512 + Ed25519 (zero third-party crypto) running in your browser. The server returns the credential's public fields; your browser (1) recomputes SHA3-512(holder|issuer|cert id|skill) and (2) rebuilds the signed certificate and verifies its Ed25519 signature against the pinned University key at /chu_issuer.pub. Both must pass. Integrity In All We Do℠