From 6113cf567fa0830233d5c3d524361f24a3f78caa Mon Sep 17 00:00:00 2001 From: Adam Soltys Date: Thu, 10 Sep 2026 07:09:45 -0700 Subject: Ark: persist vtxo bytes as base64 (a third smaller than hex); hex still read, hex still on the wire. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The live coins' signed bytes are most of a deep wallet's state — 560KB of hex, which localStorage then holds as UTF-16. vtxoBytesToStr/FromStr in proto.js persist base64 and read either form, _addVtxo writes base64, and pruneArkState converts hex to base64 on every save, so an existing state migrates itself the first time it saves. Measured on a live deep wallet: 904KB → 665KB (-26%), all 41 coins decoding identically. The sync wire (slimArkForSync) keeps sending hex for now: a device still on an older build would otherwise fail to decode every coin merged from a newer one. Flip it once pre-2026-09-10 builds are gone. Co-Authored-By: Claude Fable 5.1 Claude-Session: https://claude.ai/code/session_01Nw1Dijik1tLVKRM1WkU7xE --- src/features/ark.js | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'src/features') diff --git a/src/features/ark.js b/src/features/ark.js index a5264ad..1dcfa8c 100644 --- a/src/features/ark.js +++ b/src/features/ark.js @@ -10,7 +10,7 @@ import { ArkManager } from '../ark/manager.js'; import { loadBg, saveBg, buildBg, disarmSiblingRecords } from '../nwc-bg.js'; import { boardFee, p2trAddress } from '../ark/board.js'; import { maybeBolt11, maybeLnInvoice, lnSendFee } from '../ark/lightning.js'; -import { decodeVtxo, getVtxoStatus, VTXO_STATE_SPENT, concatBytes } from '../ark/proto.js'; +import { decodeVtxo, getVtxoStatus, VTXO_STATE_SPENT, concatBytes, vtxoBytesFromStr, vtxoBytesToHex } from '../ark/proto.js'; import { signedExitTxs, exitTxVsizes, buildBumpChild, buildExitClaim, submitPackage } from '../ark/exit.js'; import { utxoId } from '../wallet.js'; import { @@ -65,7 +65,7 @@ export function installArkWallet(wallet) { _arkVtxoOwner(st) { const v = (st?.vtxos || []).find((x) => x.bytes); if (!v) return null; - try { return decodeVtxo(hex.decode(v.bytes)).serverPubkey; } catch { return null; } + try { return decodeVtxo(vtxoBytesFromStr(v.bytes)).serverPubkey; } catch { return null; } }, // Park state under the server that actually owns it, until the URL for // that server is selected and can adopt it. @@ -116,7 +116,7 @@ export function installArkWallet(wallet) { let owner = st.serverPubkey || null; if (!owner) { const v = (st.vtxos || []).find((x) => x.bytes); - if (v) { try { owner = decodeVtxo(hex.decode(v.bytes)).serverPubkey; } catch {} } + if (v) { try { owner = decodeVtxo(vtxoBytesFromStr(v.bytes)).serverPubkey; } catch {} } } if (owner && owner !== serverPubkey) return null; // belongs to another ASP if (!owner) return null; // can't prove ownership: leave it @@ -147,7 +147,11 @@ export function slimArkForSync(s) { // Spent stubs and done actions are pure history and grow forever — cap // them (newest kept) so the sync event's size is bounded for life. vtxos: (() => { - const live = (s.vtxos || []).filter((v) => v.state !== 'spent'); + // On the wire the bytes stay HEX for now: a device still on a build + // that only reads hex would otherwise fail to decode every coin merged + // from this one. Flip to base64 once builds before 2026-09-10 are gone. + const live = (s.vtxos || []).filter((v) => v.state !== 'spent') + .map((v) => (v.bytes ? { ...v, bytes: vtxoBytesToHex(v.bytes) } : v)); const stubs = (s.vtxos || []).filter((v) => v.state === 'spent').slice(-200) .map((v) => ({ id: v.id, amountSat: v.amountSat, state: 'spent', keyIndex: v.keyIndex, expiryHeight: v.expiryHeight })); return [...live, ...stubs]; -- cgit v1.2.3