Plugin layout (one file per channel — easy to extend):
lib/verifiers/{dns,web,github,nostr,bluesky,ap}.ts
lib/verifiers/types.ts — VerifyResult + ok/fail/skipped builders
lib/verify.ts — dispatcher routing on claim.channel
Live verifiers (browser-native, no CORS proxy):
• DNS — Cloudflare DoH /dns-query, TXT at _kez.<domain>
• web — fetch <base>/.well-known/kez.json
• github — public gists API for kez.md + <user>/<user> README
Deferred to v0.2 (stubs return "skipped" with a hint):
• nostr — needs ws relay pool + NIP-19
• bluesky — needs AT-Proto client
• ap — WebFinger CORS hostile from browsers
Verification flow (all channels):
1. Fetch the published artifact via the channel's transport
2. parseAnyEnvelope() handles kez:z1: compact, ```kez fences, or raw
3. Check subject + primary against the stored claim
4. Re-canonicalize payload (JCS) and verify ed25519 signature
UI changes on /claims:
• Status badge per claim: ✓ Verified / ✗ Failed / — Skipped / Not verified
• Per-claim "Verify" button + a "Verify all" button at the top
• Expandable details panel showing the evidence URL and any error info
• Latest result persists in IndexedDB (with $state.snapshot for cloning)
kez.ts gains verifyEnvelope() and parseAnyEnvelope() — also useful to
any future verifier (CLI, sig-server, third-party).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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