11/11/19 Notes for Etherscan Verification of DSS contracts on Kovan

KovanVerificationNotes.md

0.2.16 Manual verification notes

Unless otherwise noted, compiler optimizations are disabled.

Build Notes

Using a draft version of Multicall at https://github.com/icetan/multicall-flat

• Enter nix shell nix-shell
• Add repo dapp2nix add https://github.com/dapptools/ds-pause
• Build: nix-build
• Flattened sources are in ./result/dapp/ds-pause/out folder

ABI Encoding

All parameters must be ABI-encoded, I've been using https://abi.hashex.org/# for manual verification

• https://abi.hashex.org/#

DEPLOYER

• Not a contract
• The account of the contract deployer
• AKA $ETH_FROM
• Nothing to Verify

MULTICALL

• https://github.com/makerdao/multicall
• No parameters
• Verified

FAUCET

• Kovan only - deployed previously
• Verified

MCD_DEPLOY

• DssDeploy. Bytecodes not matching currently. This one is complex.
• Verified

MCD_GOV

• Address of Maker Token
• Should already be verified
• Verified

GOV_GUARD

• Empty string (Kovan)
• Nothing to verify

MCD_ADM

• This is a DSRoles contract
• https://dapp.tools/dappsys/ds-roles.html
• https://github.com/dapphub/ds-roles
• This has been deployed previously, will need to find out when and with what compiler.
• Verified

MCD_IOU

• Empty string (Kovan)
• Nothing to verify

VOTE_PROXY_FACTORY

• Empty string (Kovan)
• Nothing to verify

MCD_VAT

• https://github.com/makerdao/dss
• vat.flat.sol
• No params
• No optimization
• Verified

MCD_JUG

• https://github.com/makerdao/dss
• jug.sol.flat
• constructor(address vat)
• Verified

# Kovan 0.2.16
  0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee

MCD_CAT

• https://github.com/makerdao/dss
• cat.sol.flat
• constructor(address vat)
• Verified

# Kovan 0.2.16
  0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee

MCD_VOW

• https://github.com/makerdao/dss
• vow.sol.flat
• constructor(address vat_, address flapper_, address flopper_)
• MCD_VAT, MCD_FLAP, MCD_FLOP
• Verified

# Kovan 0.2.16
  0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee000000000000000000000000c9d17f368a23e30a5e9ee59acec43cba4eaed9510000000000000000000000003207a405afe20a77e04f8c74674cd9f0192d7371

MCD_JOIN_DAI

• DaiJoin contract
• https://github.com/makerdao/dss
• join.sol.flat
• constructor(address vat_, address dai_)
• MCD_VAT, MCD_DAI
• Verified

# Kovan 0.2.16
  0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee000000000000000000000000c27a24e60a89a03bd2f1ffb4ea59076fd8385fe6

MCD_FLAP

• https://github.com/makerdao/dss
• flap.sol.flat
• constructor(address vat_, address gem_)
• MCD_VAT, MCD_GOV
• Verified

Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee000000000000000000000000aaf64bfcc32d0f15873a02163e7e500671a4ffcd

MCD_FLOP

• https://github.com/makerdao/dss
• flop.sol.flat
• constructor(address vat_, address gem_)
• MCD_VAT, MCD_GOV
• Verified

Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee000000000000000000000000aaf64bfcc32d0f15873a02163e7e500671a4ffcd

MCD_PAUSE

• DSPause
• https://github.com/dapphub/ds-pause
• pause.sol.flat
• constructor(uint delay_, address owner_, DSAuthority authority_)
• config->pauseDelay, address(0), seth call 0x0ff7ce98fd5c1caf09d6479ec22b7bee9079de09 'authority()(address)'
• The DS-Pause is deployed with a temporary contract that is not captured in the output.
• Verified

Kovan 0.2.16
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d1d1c361d4770c24591ff487df7c9614e015768d

MCD_PAUSE_PROXY

• DSPauseProxy
• https://github.com/dapphub/ds-pause
• pause.sol.flat
• No constructor args
• Verified

MCD_GOV_ACTIONS

• GovActions
• https://github.com/makerdao/dss-deploy
• govActions.sol.flat
• No constructor args
• Verified

MCD_DAI

• Dai
• https://github.com/makerdao/dss
• dai.sol.flat
• constructor(uint256 chainId_)
  • Kovan: 42
  • Mainnet: 1
• Verified

Kovan 0.2.16 (chainid 42)
000000000000000000000000000000000000000000000000000000000000002a

MCD_SPOT

• Spotter
• https://github.com/makerdao/dss
• spot.sol.flat
• constructor(address vat_)
  • MCD_VAT
• Verified

# Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee

MCD_POT

• Pot
• https://github.com/makerdao/dss
• pot.sol.flat
• constructor(address vat_)
  • MCD_VAT
• Verified

# Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee

MCD_END

• End
• https://github.com/makerdao/dss
• end.sol.flat
• No constructor args
• Verified

MCD_ESM

• https://github.com/makerdao/esm
• constructor(gem, end, pit, min)
• (MCD_GOV, MCD_END, config->esm_pit=0xbd747742b0f1f9791d3e6b85f8797a0cf4fbf10b , config->esm_min=50000)
• Must convert esm_min to Wei (50000000000000000000000)
• Verified

# Kovan 0.2.16
000000000000000000000000aaf64bfcc32d0f15873a02163e7e500671a4ffcd0000000000000000000000008e288a37b5d2f37d127a0beaef06fae05197866a000000000000000000000000bd747742b0f1f9791d3e6b85f8797a0cf4fbf10b000000000000000000000000000000000000000000000a968163f0a57b400000

PROXY_ACTIONS

• DssProxyActions
• https://github.com/makerdao/dss-proxy-actions
• No constructor arguments
• OPTIMIZATIONS ENABLED (200 runs)
• Verified

PROXY_ACTIONS_END

• DssProxyActionsEnd
• https://github.com/makerdao/dss-proxy-actions
• No constructor arguments
• OPTIMIZATIONS ENABLED (200 runs)
• Verified

PROXY_ACTIONS_DSR

• DssProxyActionsDsr
• https://github.com/makerdao/dss-proxy-actions
• No constructor arguments
• OPTIMIZATIONS ENABLED (200 runs)
• Verified

CDP_MANAGER

• DssCdpManager
• https://github.com/makerdao/dss-cdp-manager
• DssCdpManager.sol.flat
• constructor(address vat_)
• MCD_VAT
• Verified

# Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee

GET_CDPS

• GetCdps
• https://github.com/makerdao/dss-cdp-manager
• GetCdps.sol.flat
• No constructor args
• Verified

PROXY_FACTORY

• DSProxyFactory
• https://github.com/dapphub/ds-proxy
• No constructor args
• Verified on Kovan (06/22/18)
• Verified

PROXY_REGISTRY

• ProxyRegistry
• https://github.com/makerdao/proxy-registry
• ProxyRegistry.sol.flat
• No constructor args
• Verified on Kovan (6/22/18)
• Verified

ETH

• WETH9_
• Wrapped Ether
• Verified

VAL_ETH

• OSM
• https://github.com/makerdao/osm
• Verified on Kovan (06/26/2019)
• Verified

PIP_ETH

• OSM
• Same as VAL_ETH
• https://github.com/makerdao/osm
• Verified on Kovan (06/26/2019)
• Verified

MCD_JOIN_ETH_A

• GemJoin
• https://github.com/makerdao/dss
• constructor(address vat_, bytes32 ilk_, address gem_)
• $MCD_VAT
• "ETH-A" -> 0x4554482d41000000000000000000000000000000000000000000000000000000
• $ETH
• Verified

Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee4554482d41000000000000000000000000000000000000000000000000000000000000000000000000000000d0a1e359811322d97991e03f863a0c30c2cf029c

MCD_FLIP_ETH_A

• Flipper
• https://github.com/makerdao/dss
• constructor(address vat_, bytes32 ilk_)
• $MCD_VAT
• "ETH-A" -> 0x4554482d41000000000000000000000000000000000000000000000000000000
• Verified

Kovan 0.2.16
0000000000000000000000002d9fad7795f0658f5931b75845d14250aecc81ee4554482d41000000000000000000000000000000000000000000000000000000

BAT

• Basic Attention Token
• Mainnet Verified: 0x0d8775f648430679a709e98d2b0cb6250d2887ef
• Kovan Unverified, tokens.sol
• Previously deployed on Kovan, compiler unknown
• Verified

Kovan 0.2.16 Params:
00000000000000000000000000000000000000000000d3c21bcecceda1000000

VAL_BAT

• OSM
• https://github.com/makerdao/osm
• Verified on Kovan (06/26/2019)
• Verified

PIP_BAT

• OSM
• Same as $VAL_BAT
• https://github.com/makerdao/osm
• Verified on Kovan (06/26/2019)
• Verified

MCD_JOIN_BAT_A

• GemJoin
• Etherscan will verify bytecode based on MCD_JOIN_ETH_A
• Verified

MCD_FLIP_BAT_A

• Flipper
• Etherscan will verify bytecode based on MCD_FLIP_ETH_A
• Verified

PROXY_PAUSE_ACTIONS

• DssDeployPauseProxyActions
• https://github.com/makerdao/dss-deploy-pause-proxy-actions
• DssDeployPauseProxyActions.sol
• No compiler arguments
• Verified

PROXY_DEPLOYER

• DSProxy
• https://github.com/dapphub/ds-proxy
• Verified based on earlier deployment
• Verified

SAI_TUB

• SaiTub
• https://github.com/makerdao/sai
• Single-Collateral Dai Tub
• Verified

MIGRATION

• ScdMcdMigration
• https://github.com/makerdao/scd-mcd-migration
• constructor
  • address tub_, // SCD tub contract address
  • address cdpManager_, // MCD manager contract address
  • address saiJoin_, // MCD SAI collateral adapter contract address
  • address wethJoin_, // MCD ETH collateral adapter contract address
  • address daiJoin_ // MCD DAI adapter contract address
  • MCD_TUB, CDP_MANAGER, MCD_JOIN_SAI, MCD_JOIN_ETH_A, MCD_JOIN_DAI
• Verified

Kovan 0.2.16
000000000000000000000000a71937147b55deb8a530c7229c442fd3f31b7db20000000000000000000000009aa3779a1ffe9a2ef6c9aeeb18d2731937cefe050000000000000000000000007c32ea45214446cc7be901997dfe5318f3af4acc000000000000000000000000e5d124ec935b1b460372a28ce8ae7fb200fca9c00000000000000000000000003a3cc501d46b84f310067ef7c5df4ae1f05810ea

MIGRATION_PROXY_ACTIONS

• MigrationProxyActions
• https://github.com/makerdao/scd-mcd-migration
• MigrationProxyActions.sol.flat
• No constructor arguments
• Verified