coinosv3.git/bridge/ln.js, branch master

Zappable offer codes and per-name Lightning offers

2026-08-02T03:46:12Z

CLINK offers (noffer): every wallet gets a static offer keypair (synced across devices, first-minted wins) answering kind-21001 invoice requests — from open tabs and from the service worker while closed, which mints against the mirrored state (the record now carries chain-4 and chain-5 key windows) and raises an open-to-receive notification. Zap requests ride along and their kind-9735 receipts publish once the payment is claimed. The code is shown in the payment-address card for pasting into a Nostr profile; the notifier watches and relays kind 21001 alongside NWC. Payment names also gain a Lightning offer: the registrar creates a BOLT 12 offer per name on the node and appends lno= to the DNS record; a settle-forwarder pushes each received payment on to the name's ark destination from a small float wallet (custody window: seconds between Lightning settle and the ark send). Name resolution now runs full client-side DNSSEC validation (src/dnssec.js): binary DoH, root-anchor chain walk, RSA + ECDSA via WebCrypto — the resolver is untrusted transport, verified against live signed zones including the canonical BIP-353 test name. Co-Authored-By: Claude Fable 5

Add the trustless Ark->Lightning swap bridge

2026-07-31T22:46:22Z

A third-party swap provider built on the proposed VtxoPolicy::Htlc: users pay bolt11 invoices from their Ark balance without the ASP being the counterparty and without trusting the bridge with custody. Scope is deliberately one-directional. An ASP's lightning *receive* is already free (0 base / 0 ppm on mainnet); the expensive leg is *send*, with a 20 sat floor that eats 80% of a 25 sat zap. Only that leg is worth undercutting. - bridge/server.js: /info, /quote, /swap, /refund over Bun.serve. Validates the user's HTLC fully (policy, hash, amount, expiry margin, full vtxo chain) before spending anything on Lightning, pays, then claims with the preimage. Crash-safe: state is written atomically and every step re-checks reality (listpays before paying, so a resumed bridge never double-pays). - bridge/ln.js: minimal CLN backend (unix socket or docker exec), named params, maxfee-capped pay, pending/paid introspection. - /refund is safe to expose publicly: the ASP only cosigns a preimage-less HTLC spend when every output pays the refunder, so it cannot be redirected. tools/ark/bridge-e2e-test.js drives the real HTTP API against the patched regtest ASP: a 25 sat zap costs 1 sat, the far-end invoice really settles, the preimage checks out, resubmission is idempotent, an unroutable invoice reports refundable rather than done, and the refund lands every sat back. Co-Authored-By: Claude Fable 5