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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 <[email protected]>
Claude-Session: https://claude.ai/code/session_01QFAcD4V284DvYZZHP7Rxxy
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