REFERENCE
Contracts & addresses Arc mainnet, chain 5042. Both builders are verified on explorer.arc.io (Sourcify exact match). ArclightStaking is verified the same way and is ownerless, with constant tier thresholds, so its terms cannot be changed after deployment.
ARCLIGHT BUILDER V3 0x4685DF65C62b6B58376555694ada521DbD932732 COPY ⧉ EXPLORER ↗ ARCLIGHT BUILDER V4 0xA1B3448824D3De17D846409BFA4F38eCA3193FEC COPY ⧉ EXPLORER ↗ OWNER / TREASURY 0xfFc50d972037880545C892885b7eB05D3a361b16 COPY ⧉ EXPLORER ↗ USDC (ERC-20) 0x3600000000000000000000000000000000000000 COPY ⧉ EXPLORER ↗ ARCLIGHT (ERC-20) 0xa3de1DDA14E4B3ce2Eee2F8c1e49315EFFc15be2 COPY ⧉ EXPLORER ↗ ARCLIGHT STAKING 0x4C122b9497650b6c0e897dcd9fEACE091B7620F3 COPY ⧉ EXPLORER ↗ UNISWAP V3 NPM 0x39654A85A4C05127f5Fd6ED22CAeC077A0fB1377 COPY ⧉ EXPLORER ↗ UNISWAP V4 POSITION MANAGER 0x6049c9a0e26405C0985f9E3685C87d0aE917f82B COPY ⧉ EXPLORER ↗ PERMIT2 0x000000000022D473030F116dDEE9F6B43aC78BA3 COPY ⧉ EXPLORER ↗ MULTICALL3 0xcA11bde05977b3631167028862bE2a173976CA11 COPY ⧉ EXPLORER ↗