coinos v3 — bitcoin, Ark, Lightning and nostr wallet (web + Android) https://git.coinos.io/coinosv3.git/atom?h=fdroid-v1.9 2026-07-03T21:46:36Z 2026-07-03T21:46:36Z Adam Soltys adam@coinos.io 2026-07-03T21:46:36Z urn:sha1:5b7f8ba40cbf5c8189147b6a37aadc1b230ac4e9 Speaks Second's bark/captaind Ark protocol directly from the browser — gRPC-web over fetch with hand-rolled protobuf, no wasm, no new deps (crypto via the existing @scure/@noble stack incl. btc-signer's BIP-327 musig2 module). src/ark: - proto.js transport, ark address codec, mailbox blinding/auth, VTXO ProtocolEncoding v2 decode - send.js arkoor send: checkpoint+arkoor txs, BIP-341 sighashes, MuSig2 cosign ceremony, signed-VTXO assembly - board.js onchain -> ark: funding taproot, exit-tx cosign - refresh.js delegated round (hArk): participation, tx-chain reconstruction, hash-locked leaf cosign, forfeit swap - validate.js receive-side verification: chain must land on the vtxo point, anchor checked onchain, every transition sig verified - manager.js persistent wallet layer: storage-checkpointed step-machine actions (send/board/refresh) that survive crashes, mailbox sync with validation, multi-input consolidation refresh tools/ark: end-to-end regtest tests (receive, send, board, refresh, manager incl. crash-mid-send + resume), all passing against captaind with the bark CLI as counterparty. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QFAcD4V284DvYZZHP7Rxxy