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ecosystem: Invoice Factoring / PO Financing — reference pattern for receivables financing on Arc

Status: Open.

#196 In circlefin/arc-node;

· osr21 opened on Jul 4, 2026

bug: EOA self-calls with calldata rejected at consensus level — "External transactions to internal accounts cannot include data"

Status: Open.

#191 In circlefin/arc-node;

· osr21 opened on Jun 26, 2026

callWithMemo reverts during gas estimation (eth_call) but succeeds with direct signed transaction

Status: Open.

#189 In circlefin/arc-node;

· consumeobeydie opened on Jun 23, 2026

bug: MetaMask shows "Network fee: Unavailable" for all Arc Testnet transactions — USDC-as-native-gas breaks wallet fee estimation

Status: Open.

#188 In circlefin/arc-node;

· osr21 opened on Jun 23, 2026

feature/docs: gasless cross-asset transfer on Arc Testnet — EIP-2612 permit + sequential relayer txs + Multicall3From msg.sender trap

Status: Open.

#164 In circlefin/arc-node;

· osr21 opened on Jun 18, 2026

chore(refactor): Implement ArcConsensusBuilder closure customization

Status: Open.

#162 In circlefin/arc-node;

· ikwuoz opened on Jun 17, 2026

🌐 Ecosystem Submission: Arc Swap — First Uniswap V2 DEX deployed on Arc Testnet

Status: Open.

#160 In circlefin/arc-node;

· osr21 opened on Jun 16, 2026

docs/security: TimeLockHook hookData — finalRecipient and unlockTimestamp are caller-supplied, not verified against CCTP message payload

Status: Open.

#157 In circlefin/arc-node;

· osr21 opened on Jun 16, 2026

bug: CCTP v2 receiveMessage() on destination chains fails with 'max fee per gas less than block base fee' when using default viem gas estimation

Status: Open.

#153 In circlefin/arc-node;

· osr21 opened on Jun 15, 2026

bug: unvalidated Fin proposal-part sequence overflows expected_messages (panics in overflow-checked node builds, wedges the stream in release)

Status: Open.

#144 In circlefin/arc-node;

· Jr-kenny opened on Jun 13, 2026

metrics: incorrect write_time counter for insert_decided_block in store.rs

Status: Open.

#142 In circlefin/arc-node;

· ikwuoz opened on Jun 13, 2026

bug: ERC-4337 Paymaster on Arc Testnet — validatePaymasterUserOp must not use ReentrancyGuard; violates ERC-7562, Pimlico silently rejects

Status: Open.

#141 In circlefin/arc-node;

· osr21 opened on Jun 13, 2026