coinos v3 — bitcoin, Ark, Lightning and nostr wallet (web + Android) https://git.coinos.io/coinosv3.git/atom?h=master 2026-06-15T06:01:03Z 2026-06-15T06:01:03Z Adam Soltys adam@coinos.io 2026-06-15T06:01:03Z urn:sha1:c5443946031ec32a7b3008fa751eb7916654a9f6 Replace the SvelteKit/daisyUI prototype with a vanilla JS + hand-rolled CSS app that Bun bundles (code + scure/noble crypto + QR + CSS) into one self-contained dist/index.html runnable offline from file://. Wallet core (src/wallet.js): - BIP84 native-segwit HD wallet from BIP39 seed (+optional passphrase) - gap-limit scan of receive/change chains, aggregate balance, tx history - fresh receive/change addresses; signs with witnessUtxo only (enables offline signing with no prev-tx fetch) - coin selection + fee estimation via btc-signer selectUTXO; send-max; manual coin control - offline JSON snapshot export/import (keyless) + signed-tx hex/QR export - realtime mempool.space WebSocket: track-addresses -> debounced auto refresh of balances/history (no polling); live status badge UI (src/app.js): clean light paper-wallet; create (with optional, skippable backup verification) / import flow; receive (QR) / send / history / coins / tools tabs; clickable logo returns home. API (src/api.js): mempool.space wrapper with retry/backoff for scan-burst rate limiting; single network choke-point for offline enforcement. Verified: BIP84 spec vectors, build/sign/parse for auto/max/manual flows, snapshot roundtrip, live scan + WebSocket, headless-Chrome UI smoke tests. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> 2025-07-15T19:51:33Z Adam Soltys adam@coinos.io 2025-07-15T19:51:33Z urn:sha1:9fe20ee5ef5528364d0a497e4e50e7a6f69142c5