Event catalog

Use these tables to set up an indexer or a subgraph for YieldBasis. For each event, a table gives the field names, the canonical signature, the topic0 hash, the indexed fields, and the functions that emit it.

Read the tables

The topic0 of an event is the keccak-256 hash of its canonical signature. The canonical signature is the event name and the field types in declaration order, separated by commas, with no spaces, field names, or indexed keywords.

For example, keccak256("Deposit(address,address,uint256,uint256)") is 0xdcbc1c05240f31ff3ad067ef1ee35ce4997762752e3a095284754544f4c709d7, the topic0 of the LT Deposit event.

Vyper types map to ABI types in the canonical signature as follows:

An interface type, for example IERC20, is address.
A DynArray[T, N] is T[].
A struct is a tuple of its member types, for example (address,uint8,uint256).
A flag type, for example LockActions in VotingEscrow, is uint256.

The indexed fields are topic1 to topic3, in declaration order. The other fields are ABI-encoded in the log data.

A contract also emits the events of the modules that it initializes. The ERC-20, ERC-721, and ERC-4626 events come from the Vyper built-in interfaces in ethereum.ercs. OwnershipTransferred and RoleMinterChanged come from snekmate. The tables include these events.

Filter by contract address, not by topic0 alone

Some events in different contracts have the same canonical signature, so they have the same topic0. The indexed fields can still differ:

Transfer(address,address,uint256) is the ERC-20 transfer of yb-LP, gauge shares, YB, and the Curve pool LP token, and also the ERC-721 transfer of veYB. veYB indexes token_id as a third topic.
TokenExchange(address,uint256,uint256,uint256,uint256,uint256,uint256) is in AMM (the LEVAMM) and the Curve pool. The last field is price_oracle in AMM and price_scale in the pool.
Deposit and Withdraw of LT and of the gauges have the same topic0.
Claim(address,uint256) is in InflationaryVest (no indexed field), VestingEscrow (recipient indexed), and FastGauge (user indexed).
SetKilled(bool) is in AMM and YBOraclizedPolicy.
SetEmaTime(uint256) is in FastGauge and YBLendingOracleLL.
Recover(address,uint256) is in FeeSplitter, PID, and MerklPIDDriver. PID and MerklPIDDriver also share SetPressureLts, SetSources, SetGains, and SetExecutionParams.
OwnershipTransferred(address,address) is in every contract that uses snekmate ownable.

Core

The Factory deploys one LT, LEVAMM (AMM), VirtualPool, CryptopoolLPOracle, and LiquidityGauge for each market. To find the instances, enumerate Factory.markets(i) for i below Factory.market_count().

`LT`

LT emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Deposit(sender, owner, assets, shares)`	`Deposit(address,address,uint256,uint256)`	`0xdcbc1c05240f31ff3ad067ef1ee35ce4997762752e3a095284754544f4c709d7`	`sender`, `owner`	`deposit`
`Withdraw(sender, receiver, owner, assets, shares)`	`Withdraw(address,address,address,uint256,uint256)`	`0xfbde797d201c681b91056529119e0b02407c7bb96a4a2c75c01fc9667232c8db`	`sender`, `receiver`, `owner`	`withdraw`
`Transfer(sender, receiver, value)`	`Transfer(address,address,uint256)`	`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`sender`, `receiver`	Mints, burns, and transfers of yb-LP, and staked-bucket changes: `deposit`, `withdraw`, `emergency_withdraw`, `withdraw_admin_fees`, `transfer`, `transferFrom`, `set_staker`, `checkpoint_staker_rebase`
`Approval(owner, spender, value)`	`Approval(address,address,uint256)`	`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`owner`, `spender`	`approve`, and `transferFrom` unless the allowance is the maximum
`SetStaker(staker)`	`SetStaker(address)`	`0x6901da73a3480b0bbd7deb64f259ff29a76ce811c7a3e5cf495f0e1eb4fb4dfb`	`staker`	`set_staker`
`WithdrawAdminFees(receiver, amount)`	`WithdrawAdminFees(address,uint256)`	`0x78b4892921a904766a871a893b75e9461080a308419f358353f73739b29c7fc4`	None	`withdraw_admin_fees`
`AllocateStablecoins(allocator, stablecoin_allocation, stablecoin_allocated)`	`AllocateStablecoins(address,uint256,uint256)`	`0x6f16a992fba7b966942bb6064775e154f99de09fce962940d4e284c5c9132868`	`allocator`	`allocate_stablecoins`
`DistributeBorrowerFees(sender, amount, min_amount, discount)`	`DistributeBorrowerFees(address,uint256,uint256,uint256)`	`0x5bdcb9afddbd4bbebe8e11112e8b8ba0008f38b107b6c8d4bed13e9fb40acb1c`	`sender`	`distribute_borrower_fees`, and at the end of `deposit` and `withdraw`, when LT holds crvUSD to donate
`SetAdmin(admin)`	`SetAdmin(address)`	`0x5a272403b402d892977df56625f4164ccaf70ca3863991c43ecfe76a6905b0a1`	None	`set_admin`

`AMM`

AMM, the LEVAMM contract, emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`TokenExchange(buyer, sold_id, tokens_sold, bought_id, tokens_bought, fee, price_oracle)`	`TokenExchange(address,uint256,uint256,uint256,uint256,uint256,uint256)`	`0x143f1f8e861fbdeddd5b46e844b7d3ac7b86a122f36e8c463859ee6811b1f29c`	`buyer`	`exchange`. `buyer` is `msg.sender`. On a VirtualPool route, `buyer` is the VirtualPool
`AddLiquidityRaw(token_amounts, invariant, price_oracle)`	`AddLiquidityRaw(uint256[2],uint256,uint256)`	`0x488e5334cc9bea5219087037712837bf3d72b260676f5d41c866905cca6842d1`	None	`_deposit`, which only LT calls, in `LT.deposit`
`RemoveLiquidityRaw(collateral_change, debt_change)`	`RemoveLiquidityRaw(uint256,uint256)`	`0x33c707093baa929b1d0237d3c8111e597ba833fcc950696c87d5ff66a287e31e`	None	`_withdraw`, which only LT calls, in `LT.withdraw` and `LT.emergency_withdraw`
`SetRate(rate, rate_mul, time)`	`SetRate(uint256,uint256,uint256)`	`0x52543716810f73c3fa9bca74622aecb6d3614ca4991472f3e999d531c2f6afb8`	None	`set_rate`
`CollectFees(amount, new_supply)`	`CollectFees(uint256,uint256)`	`0x5393ab6ef9bb40d91d1b04bbbeb707fbf3d1eb73f46744e2d179e4996026283f`	None	`collect_fees`, and in `exchange`. `amount` can be 0
`SetFee(fee)`	`SetFee(uint256)`	`0x00172ddfc5ae88d08b3de01a5a187667c37a5a53989e8c175055cb6c993792a7`	None	`set_fee`
`SetKilled(is_killed)`	`SetKilled(bool)`	`0xf6a23ecf31263066d4cc1ac21837c1714818045ecc5c0dd89f279e0bd4b7ef87`	None	`set_killed`

`VirtualPool`

VirtualPool emits this event:

Event	Canonical signature	Topic0	Indexed	Emitted by
`TokenExchange(buyer, sold_id, tokens_sold, bought_id, tokens_bought)`	`TokenExchange(address,uint256,uint256,uint256,uint256)`	`0xb2e76ae99761dc136e598d4a629bb347eccb9532a5f8bbd72e18467c3c34cc98`	`buyer`	`exchange`. `buyer` is the recipient (`_for`), not the caller

`Factory`

Factory emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`MarketParameters(idx, asset_token, cryptopool, amm, lt, price_oracle, virtual_pool, staker, agg)`	`MarketParameters(uint256,address,address,address,address,address,address,address,address)`	`0x0a2f141c803b7bf5e04b3d7b621d659110855c736b446179264d6a61232d3f0b`	`idx`, `asset_token`, `cryptopool`	`add_market`, `fill_staker_vpool`
`SetImplementations(amm, lt, virtual_pool, price_oracle, staker)`	`SetImplementations(address,address,address,address,address)`	`0xe0816edf10a269aa4a7dd0728c02244458ca712361bfc23d84a4ea830b7c44ef`	None	Constructor, `set_implementations`
`SetAllocator(allocator, amount)`	`SetAllocator(address,uint256)`	`0x6e671c52e5bc0aa133fe59c69dcbdde3ebec4145c563664428a70731ff91ae0f`	None	`set_mint_factory`, `set_allocator`
`SetFeeReceiver(fee_receiver)`	`SetFeeReceiver(address)`	`0xffb40bfdfd246e95f543d08d9713c339f1d90fa9265e39b4f562f9011d7c919f`	None	`set_fee_receiver`
`SetAgg(agg)`	`SetAgg(address)`	`0x843c0fd5d15daa8bb099274f122c91630f39df53ebf3c5f8e843c979fb660bca`	None	`set_agg`
`SetFlash(flash)`	`SetFlash(address)`	`0xeaa8d04d33cdb2fd361c560c793d8cbaee16fbba34b3747921ab2a76191f912d`	None	`set_flash`
`SetAdmin(admin, emergency_admin, old_admin, old_emergency_admin)`	`SetAdmin(address,address,address,address)`	`0x9a45e4c3baa33ef1c484b02fb5837d58d3ffb1b7cf7a11ea3b8d0546064ab3bb`	None	`set_admin`
`SetMinAdminFee(admin_fee)`	`SetMinAdminFee(uint256)`	`0x1d944867b41f8cfe3aa0b5ba9ff5c481e37c5c4dd403801d32000a939ba5fcc0`	None	`set_min_admin_fee`
`SetGaugeController(gc)`	`SetGaugeController(address)`	`0x613940253cf21d005743a34a04b5c9c39fb1700b83758166647e87af9b826ac7`	None	`set_gauge_controller`

`HybridVault`

HybridVault emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`SetPersonalLimit(pool_id, limit)`	`SetPersonalLimit(uint256,uint256)`	`0x40177d2fe9a10c67c6ae4f4ea612a783b79a43025da645fd8c39b42c91fcc5ed`	None	`set_personal_limit`
`SetCrvusdVault(vault)`	`SetCrvusdVault(address)`	`0xe18ffb1ea781b234edb756f46ee486ff71f285bce79171881d5baa1269d54e62`	None	`set_crvusd_vault`

`HybridVaultFactory`

HybridVaultFactory emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`VaultCreated(user, vault)`	`VaultCreated(address,address)`	`0x5d9c31ffa0fecffd7cf379989a3c7af252f0335e0d2a1320b55245912c781f53`	`user`, `vault`	`create_vault`
`SetVaultImpl(impl)`	`SetVaultImpl(address)`	`0x999d30d6fe53fe3b3c7e414cdceac209b0712454921ef7114248d261e64d8c23`	None	`set_vault_impl`
`SetStablecoinFraction(stablecoin_fraction)`	`SetStablecoinFraction(uint256)`	`0x9774308ddecd91d58d169d64a37d81b2e341596431f2447bee671e1679db10a9`	None	`set_stablecoin_fraction`
`SetPoolLimit(pool_id, limit)`	`SetPoolLimit(uint256,uint256)`	`0xa7c5f1f034eab2cc85e9b61f2f2dd0b9dee49078571c5bbd7063de88de2f81e2`	None	Constructor, `set_pool_limit`
`SetAllowedCrvusdVault(vault, allowed)`	`SetAllowedCrvusdVault(address,bool)`	`0x5f60501daf33df61a553f3bbe2900320c48d28cf6214f4817e00d6186423ae25`	None	`set_allowed_crvusd_vault`
`SetCrvusdVaultLimit(crvusd_vault, limit)`	`SetCrvusdVaultLimit(address,uint256)`	`0x4e90d5c6bce9f895b89c5bf5b1f61925df7071ba2aad3239295a5999e3f65f10`	None	`set_allowed_crvusd_vault`, `set_crvusd_vault_limit`

`HybridFactoryOwner`

HybridFactoryOwner emits this event:

Event	Canonical signature	Topic0	Indexed	Emitted by
`SetLimitSetter(setter, enabled)`	`SetLimitSetter(address,bool)`	`0x145ec2d7ec3d5614d1ce5a0a96faefc02d54e89d5408a106c0c832303edf31ee`	None	`set_limit_setter`

`YBLendingOracle`

YBLendingOracle emits this event:

Event	Canonical signature	Topic0	Indexed	Emitted by
`OraclesCreated(market_id, lt, usd_oracle, asset_oracle)`	`OraclesCreated(uint256,address,address,address)`	`0x2df0208f5e7ec1e3176b5b9a893a87bd532a9324a5d67d6a5c3c88d0704e8cea`	`market_id`, `lt`	`create_oracles`

`YBLendingOracleLL`

YBLendingOracleLL emits this event:

Event	Canonical signature	Topic0	Indexed	Emitted by
`SetEmaTime(ema_time)`	`SetEmaTime(uint256)`	`0x3b0acc0a291bf012a300d56b920406d76ac62577ce81b7466d011fa9c1c126ee`	None	`set_ema_time`

`YBLendingOracleLLFactory`

YBLendingOracleLLFactory emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`OraclesCreated(market_id, lt, usd_oracle, asset_oracle, ema_time)`	`OraclesCreated(uint256,address,address,address,uint256)`	`0x3b1121b91cf8ad42008708e2a55d29129c6857ab29d2c552d9fa5bd5717f33cf`	`market_id`, `lt`	`create_oracles`
`SetDefaultEmaTime(ema_time)`	`SetDefaultEmaTime(uint256)`	`0x173b0bf26a164d868d8793d9a6bd6a191d64f6ab91d50245cc0741812e4e03e9`	None	`set_default_ema_time`
`SetEmaTime(market_id, oracle, ema_time)`	`SetEmaTime(uint256,address,uint256)`	`0x5683cacbead3c6d342bedcbf77479e03a9338af5a333fd3f278f547d54acf308`	`market_id`, `oracle`	`set_ema_time`
`SetDao(dao)`	`SetDao(address)`	`0x202719d39eed4fb6f9f942a2eded433c67f5aa302dad8a13dd453c4b00489f63`	`dao`	`set_dao`

`LTSwapZap`

LTSwapZap emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Converted(lt, shares, crvusd_out)`	`Converted(address,uint256,uint256)`	`0xe6a45eea08a42f7c3f90f290e8ecf15e16174981943adf509fc9ea49808a64c6`	`lt`	`convert`
`Returned(lt, assets)`	`Returned(address,uint256)`	`0xdd81098bbc043431d4a440ca8823673fd1129893ab79f9838df4cf3d5e381259`	`lt`	`convert`
`SetSwapFeeMultiplier(swap_fee_multiplier)`	`SetSwapFeeMultiplier(uint256)`	`0xc9d25661e22e7cb4e9bb42c0ab37317c9d016c545490fc0a7fb4b59eb68b9eae`	None	`set_swap_fee_multiplier`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

Core contracts with no events

MigrationFactoryOwner, LTMigrator, and CryptopoolLPOracle emit no events.

DAO

`YB`

YB emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Transfer(sender, receiver, value)`	`Transfer(address,address,uint256)`	`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`sender`, `receiver`	`transfer`, `transferFrom`, `mint`, `emit`
`Approval(owner, spender, value)`	`Approval(address,address,uint256)`	`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`owner`, `spender`	`approve`, and `transferFrom` unless the allowance is the maximum
`RoleMinterChanged(minter, status)`	`RoleMinterChanged(address,bool)`	`0xbb6e183664bd7425a9e444072cb0f1c7f7c4d5486a36d7d24d0b0735687c2ef4`	`minter`	Constructor, `set_minter`, `transfer_ownership`, `renounce_ownership`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`, `renounce_ownership`

`VotingEscrow`

VotingEscrow emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Deposit(_from, _for, value, locktime, type, ts)`	`Deposit(address,address,uint256,uint256,uint256,uint256)`	`0x5f971bd00bf3ffbca8a6d72cdd4fd92cfd4f62636161921d1e5a64f0b64ccb6d`	`_from`, `_for`, `locktime`	`create_lock`, `increase_amount`, `increase_unlock_time`, `infinite_lock_toggle`
`Withdraw(_from, _for, value, ts)`	`Withdraw(address,address,uint256,uint256)`	`0xf341246adaac6f497bc2a656f546ab9e182111d630394f0c57c710a59a2cb567`	`_from`, `_for`	`withdraw`
`Supply(prevSupply, supply)`	`Supply(uint256,uint256)`	`0x5e2aa66efd74cce82b21852e317e5490d9ecc9e6bb953ae24d90851258cc2f5c`	None	With every `Deposit` and `Withdraw`
`SetTransferClearanceChecker(clearance_checker)`	`SetTransferClearanceChecker(address)`	`0xa7fad85ba00d983deab3d92e1bbba81938da68cddbcb5d4f018ef3b1e66534fa`	None	`set_transfer_clearance_checker`
`Transfer(sender, receiver, token_id)`	`Transfer(address,address,uint256)`	`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`sender`, `receiver`, `token_id`	`create_lock` (mint); `withdraw`, `transferFrom`, `safeTransferFrom` (burn). A transfer merges the two positions and burns the source NFT
`Approval(owner, approved, token_id)`	`Approval(address,address,uint256)`	`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`owner`, `approved`, `token_id`	`approve`
`ApprovalForAll(owner, operator, approved)`	`ApprovalForAll(address,address,bool)`	`0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31`	`owner`, `operator`	`setApprovalForAll`
`RoleMinterChanged(minter, status)`	`RoleMinterChanged(address,bool)`	`0xbb6e183664bd7425a9e444072cb0f1c7f7c4d5486a36d7d24d0b0735687c2ef4`	`minter`	Constructor
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`GaugeController`

GaugeController emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`VoteForGauge(time, user, gauge_addr, weight)`	`VoteForGauge(uint256,address,address,uint256)`	`0x45ca9a4c8d0119eb329e580d28fe689e484e1be230da8037ade9547d2d25cc91`	None	`vote_for_gauge_weights`
`NewGauge(addr)`	`NewGauge(address)`	`0x88b3a3dcf49d2c2bc73de47dc84b60f3b9179d60d97b8ba43a1d3aa726c818b9`	None	`add_gauge`
`SetKilled(gauge, is_killed)`	`SetKilled(address,bool)`	`0x6f287c58034b39b1a4c2b7eb84d0bfceccc7984f19675343742bb94f114a46c6`	None	`set_killed`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`LiquidityGauge`

LiquidityGauge emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Deposit(sender, owner, assets, shares)`	`Deposit(address,address,uint256,uint256)`	`0xdcbc1c05240f31ff3ad067ef1ee35ce4997762752e3a095284754544f4c709d7`	`sender`, `owner`	`deposit`, `mint`
`Withdraw(sender, receiver, owner, assets, shares)`	`Withdraw(address,address,address,uint256,uint256)`	`0xfbde797d201c681b91056529119e0b02407c7bb96a4a2c75c01fc9667232c8db`	`sender`, `receiver`, `owner`	`withdraw`, `redeem`
`Transfer(sender, receiver, value)`	`Transfer(address,address,uint256)`	`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`sender`, `receiver`	Mints, burns, `transfer`, and `transferFrom` of gauge shares
`Approval(owner, spender, value)`	`Approval(address,address,uint256)`	`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`owner`, `spender`	`approve`, and `transferFrom` unless the allowance is the maximum
`AddReward(token, distributor, id)`	`AddReward(address,address,uint256)`	`0xbaa8134d057f38ffff73248ae9edf1012783d074fbae40443077bf53fc57b9ec`	`token`	Constructor (YB, id 0), `add_reward`
`ChangeRewardDistributor(token, distributor)`	`ChangeRewardDistributor(address,address)`	`0xd6161cfaa8ff15169d3b9c3c69f7dcd627a1c5ca6a3534afdd8054d2961c6102`	`token`	`change_reward_distributor`
`DepositRewards(token, distributor, amount, finish_time)`	`DepositRewards(address,address,uint256,uint256)`	`0x1ecc08cf4f4c06326e836da1a250282d8c384890b0d027466c2923183d9da0bd`	`token`	`deposit_reward`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`
`RoleMinterChanged(minter, status)`	`RoleMinterChanged(address,bool)`	`0xbb6e183664bd7425a9e444072cb0f1c7f7c4d5486a36d7d24d0b0735687c2ef4`	`minter`	Constructor

`FeeDistributor`

FeeDistributor emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`FundEpoch(epoch, token, amount)`	`FundEpoch(uint256,address,uint256)`	`0x9f019dbc9514f8715f51d181b9d5b45c99d39aeab1d60fc3a8ae35fe8ce1318d`	`epoch`, `token`	`fill_epochs`, `add_token_set`, and claims
`AddTokenSet(token_set_id, token_set)`	`AddTokenSet(uint256,address[])`	`0x15a950c06832d3d93393104b6e1c6574a014aba4e45e861c3d59bb314217753a`	`token_set_id`	Constructor, `add_token_set`
`Claim(user, token, amount)`	`Claim(address,address,uint256)`	`0x70eb43c4a8ae8c40502dcf22436c509c28d6ff421cf07c491be56984bd987068`	`user`, `token`	`claim`
`Kill(is_killed)`	`Kill(bool)`	`0x341b7cf6ad8a4dc51ac20a161fe9ee87ee5f180554bf9d4bf1746b8335d61b98`	None	`kill_toggle`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`InflationaryVest`

InflationaryVest emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Start(timestamp, amount)`	`Start(uint256,uint256)`	`0x5a7d5f50ab70a39d193bf53f0fb995377776df93bb6fdcf1cd1868b7e0dd44ee`	None	`start`
`NewRecepient(recipient, old_recipient)`	`NewRecepient(address,address)`	`0xc92ec79bcdcbb8ac6d9db1aec210e7ae67c74b314724e6747aacb7fb3de23048`	None	`set_recipient`. The name keeps the source spelling
`Claim(recipient, claimed)`	`Claim(address,uint256)`	`0x47cee97cb7acd717b3c0aa1435d004cd5b3c8c57d70dbceb4e4458bbd60e39d4`	None	`claim`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`VestingEscrow`

VestingEscrow emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Fund(recipient, amount)`	`Fund(address,uint256)`	`0xda8220a878ff7a89474ccffdaa31ea1ed1ffbb0207d5051afccc4fbaf81f9bcd`	`recipient`	`fund`
`Defund(recipient, refund_recipient, amount)`	`Defund(address,address,uint256)`	`0x3bb082152a6aeca4accd7a549583361cf3387c060a33681f9bc6f22fa6333f8c`	`recipient`	`rug_disabled`
`Claim(recipient, claimed)`	`Claim(address,uint256)`	`0x47cee97cb7acd717b3c0aa1435d004cd5b3c8c57d70dbceb4e4458bbd60e39d4`	`recipient`	`claim`
`ToggleDisable(recipient, disabled)`	`ToggleDisable(address,bool)`	`0xcc8442d1b68aaf1cdb1da2b3d9ebf3daad586d3404166b75d744a8b5092cefad`	None	`toggle_disable`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`, `renounce_ownership`

`CliffEscrow`

CliffEscrow emits this event:

Event	Canonical signature	Topic0	Indexed	Emitted by
`TokenRecovered(token, to, amount)`	`TokenRecovered(address,address,uint256)`	`0x879f92dded0f26b83c3e00b12e0395dc72cfc3077343d1854ed6988edd1f9096`	`token`	`recover_token`

`SnapshotSplitter`

SnapshotSplitter emits this event:

Event	Canonical signature	Topic0	Indexed	Emitted by
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `renounce_ownership`

DAO contracts with no events

StakeZap, TokenSender, Multisend, CallComparator, and VotingPowerCondition emit no events.

Net pressure

The net-pressure contracts pay crvUSD incentives to liquidity in a sink pool. A share of LT admin fees funds them: the FeeSplitter sends that share to the active driver. To find the active driver, call FeeSplitter.pid().

`FeeSplitter`

FeeSplitter emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`SetSplitFraction(fraction)`	`SetSplitFraction(uint256)`	`0x5163c61ce6b666fd7e8f0052701d65ba037ca1f4be2ef7d6c700708fb65d3c14`	None	`set_split_fraction`
`SetDestinations(pid, fee_distributor)`	`SetDestinations(address,address)`	`0x57fc998440efdf6938380dcf06de4ae46210a2019f420bacb095ce6424518cea`	None	`set_destinations`
`Recover(token, amount)`	`Recover(address,uint256)`	`0x817c5912299b2d8eea4d9429e557c7b42c96a31499b4229932d1f070f068e37a`	`token`	`recover`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`MerklPIDDriver`

MerklPIDDriver emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Converted(crvusd_gained, reserve)`	`Converted(uint256,uint256)`	`0xd25ed857c9bba3b62ea894bc5be45b59c376bae644b4ee89bd6e35d566d1bb37`	None	`trigger`
`SetPressureLts(lts)`	`SetPressureLts(address[])`	`0xb40a8a8dce118dec5ac2eaca9f67b2d30b36745651f4afa3ef5fa6356fad191b`	None	`set_pressure_lts`
`SetSinkPool(sink_pool)`	`SetSinkPool(address)`	`0xa08e1eb03e7945b17d1b6b20197f1d090c016b778c54f74b1e002ea11ed2dcb4`	`sink_pool`	`set_sink_pool`
`SetManager(manager)`	`SetManager(address)`	`0x54a6385aa0292b04e1ef8513253c17d1863f7cdfc87029d77fd55cc4c2e717e2`	`manager`	`set_manager`
`SetMerkl(creator, wrapper)`	`SetMerkl(address,address)`	`0x4009fea718f18839041a862e88869c34c0c1349447b95ac09ff04511817e3b99`	`creator`, `wrapper`	`set_merkl`
`CampaignCreated(campaign_id, amount, campaign_type, duration)`	`CampaignCreated(bytes32,uint256,uint32,uint32)`	`0x440f5d333f278a1d892c151accabd01912d555a7621928e244b180b932b23533`	`campaign_id`	`create_campaign`
`CampaignOverridden(campaign_id, duration)`	`CampaignOverridden(bytes32,uint32)`	`0x9fa3732718ceb01812aa1ddcea9292e1b34fa107328ce0777ec0623ad18d2510`	`campaign_id`	`override_campaign`
`SetSources(net_pressure, market_rate_getter, fee_distributor)`	`SetSources(address,address,address)`	`0xb9dcc9467d74eeb0cb92d2dba6bf9ba6fd32f0980291ef3395e8a5d8e5ddf129`	`net_pressure`, `market_rate_getter`, `fee_distributor`	`set_sources`
`SetGains(feedforward_gain, kp, ki, kd, max_integral, sink_cap, dead_band, sink_per_offer, d_filter_time)`	`SetGains(int256,int256,int256,int256,int256,int256,uint256,uint256,uint256)`	`0x1797cbcab3d7f12e0ba26aab15ce9ae02958eaf8517f2fa8394a44bc4040131f`	None	`set_gains`
`SetExecutionParams(swap_fee_multiplier, dust_floor)`	`SetExecutionParams(uint256,uint256)`	`0xbecda7d837c1bb02e6311e18cdc0b2c4ef4e45df35fa74d7425d825d13fe1f74`	None	`set_execution_params`
`Recover(token, amount)`	`Recover(address,uint256)`	`0x817c5912299b2d8eea4d9429e557c7b42c96a31499b4229932d1f070f068e37a`	`token`	`recover`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`PID`

PID emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`Trigger(pressure, sink, bonus_apr, rate)`	`Trigger(uint256,uint256,uint256,uint256)`	`0x9fb03503c588109364d8b409ef5f744a492c5da9d82338ad0d2e186d16e705a1`	None	`trigger`
`SetPressureLts(lts)`	`SetPressureLts(address[])`	`0xb40a8a8dce118dec5ac2eaca9f67b2d30b36745651f4afa3ef5fa6356fad191b`	None	`set_pressure_lts`
`SetGauge(gauge, sink_pool)`	`SetGauge(address,address)`	`0xb980a40e5b6e992493967c8460db4d84575ad3246c3a17141fa7756ae4dd7180`	`gauge`, `sink_pool`	`set_gauge`
`SetSources(net_pressure, market_rate_getter, fee_distributor)`	`SetSources(address,address,address)`	`0xb9dcc9467d74eeb0cb92d2dba6bf9ba6fd32f0980291ef3395e8a5d8e5ddf129`	`net_pressure`, `market_rate_getter`, `fee_distributor`	`set_sources`
`SetGains(feedforward_gain, kp, ki, kd, max_integral, sink_cap, dead_band, sink_per_offer, d_filter_time)`	`SetGains(int256,int256,int256,int256,int256,int256,uint256,uint256,uint256)`	`0x1797cbcab3d7f12e0ba26aab15ce9ae02958eaf8517f2fa8394a44bc4040131f`	None	`set_gains`
`SetExecutionParams(swap_fee_multiplier, dust_floor)`	`SetExecutionParams(uint256,uint256)`	`0xbecda7d837c1bb02e6311e18cdc0b2c4ef4e45df35fa74d7425d825d13fe1f74`	None	`set_execution_params`
`Recover(token, amount)`	`Recover(address,uint256)`	`0x817c5912299b2d8eea4d9429e557c7b42c96a31499b4229932d1f070f068e37a`	`token`	`recover`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`

`FastGauge`

FastGauge emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`SetPID(pid)`	`SetPID(address)`	`0xa416f4bc7c6ac77e4b027fc41117279569fa6ea0789442203338cf5d66399f0c`	None	`set_pid`
`SetRewardRate(rate)`	`SetRewardRate(uint256)`	`0x1946fb78c7ca778b54d82cabaac5ba67cf446f58d0ff1f8ceaebb6150e54e44f`	None	`set_reward_rate`
`SetEmaTime(ema_time)`	`SetEmaTime(uint256)`	`0x3b0acc0a291bf012a300d56b920406d76ac62577ce81b7466d011fa9c1c126ee`	None	`set_ema_time`
`Claim(user, amount)`	`Claim(address,uint256)`	`0x47cee97cb7acd717b3c0aa1435d004cd5b3c8c57d70dbceb4e4458bbd60e39d4`	`user`	`claim`
`AddLiquidity(provider, receiver, amounts, lp)`	`AddLiquidity(address,address,uint256[],uint256)`	`0x67902069e86c21d5ad116d9df073bf02a2bfdbd591414157cda22d3b8476cd53`	`provider`, `receiver`	`add_liquidity`
`RemoveLiquidity(owner, receiver, shares, amounts)`	`RemoveLiquidity(address,address,uint256,uint256[])`	`0x1dc97ea566f2546624b7d74a8558e099ecb12a370ab938702dce1e07c913d764`	`owner`, `receiver`	`remove_liquidity`
`RemoveLiquidityOne(owner, receiver, shares, coin, dy)`	`RemoveLiquidityOne(address,address,uint256,int128,uint256)`	`0xda6eed9a2c666558a454f1798228545e33d9e515b4a93cc70073aece4ef62a1c`	`owner`, `receiver`	`remove_liquidity_one_coin`
`Deposit(sender, owner, assets, shares)`	`Deposit(address,address,uint256,uint256)`	`0xdcbc1c05240f31ff3ad067ef1ee35ce4997762752e3a095284754544f4c709d7`	`sender`, `owner`	`deposit`, `mint`
`Withdraw(sender, receiver, owner, assets, shares)`	`Withdraw(address,address,address,uint256,uint256)`	`0xfbde797d201c681b91056529119e0b02407c7bb96a4a2c75c01fc9667232c8db`	`sender`, `receiver`, `owner`	`withdraw`, `redeem`
`Transfer(sender, receiver, value)`	`Transfer(address,address,uint256)`	`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`sender`, `receiver`	Mints, burns, `transfer`, and `transferFrom` of gauge shares
`Approval(owner, spender, value)`	`Approval(address,address,uint256)`	`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`owner`, `spender`	`approve`, and `transferFrom` unless the allowance is the maximum
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Constructor, `transfer_ownership`
`RoleMinterChanged(minter, status)`	`RoleMinterChanged(address,bool)`	`0xbb6e183664bd7425a9e444072cb0f1c7f7c4d5486a36d7d24d0b0735687c2ef4`	`minter`	Constructor

Net-pressure contracts with no events

YBNetPressure and MarketRateGetter emit no events.

Curve pool and policies

Curve pool (Twocrypto with policy hook)

The pools of markets 7 to 10 are Twocrypto v3.0.0. In this code, N_COINS is 2 and the Policy interface type is address. A pool deployed from other code can emit different types, so compare with the verified ABI of the pool.

A v3.0.0 pool emits these events:

Event	Canonical signature	Topic0	Indexed	Note
`Transfer(sender, receiver, value)`	`Transfer(address,address,uint256)`	`0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef`	`sender`, `receiver`	LP token
`Approval(owner, spender, value)`	`Approval(address,address,uint256)`	`0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925`	`owner`, `spender`	LP token
`TokenExchange(buyer, sold_id, tokens_sold, bought_id, tokens_bought, fee, price_scale)`	`TokenExchange(address,uint256,uint256,uint256,uint256,uint256,uint256)`	`0x143f1f8e861fbdeddd5b46e844b7d3ac7b86a122f36e8c463859ee6811b1f29c`	`buyer`
`AddLiquidity(provider, receiver, token_amounts, fee, token_supply, price_scale)`	`AddLiquidity(address,address,uint256[2],uint256,uint256,uint256)`	`0x0e1f3c59f25a027e14a3f55c68245d22089c42b1dcd09f123a11d4af3c0d6f72`	`provider`, `receiver`	Also emitted for donations
`Donation(donor, token_amounts)`	`Donation(address,uint256[2])`	`0xc05458c16b884817a70d3d18223db5fe4adb4cb541a5573bef0daae7a6f20542`	`donor`
`RemoveLiquidity(provider, token_amounts, token_supply)`	`RemoveLiquidity(address,uint256[2],uint256)`	`0xdd3c0336a16f1b64f172b7bb0dad5b2b3c7c76f91e8c4aafd6aae60dce800153`	`provider`
`RemoveLiquidityOne(provider, token_amount, coin_index, coin_amount, approx_fee, packed_price_scale)`	`RemoveLiquidityOne(address,uint256,uint256,uint256,uint256,uint256)`	`0xe200e24d4a4c7cd367dd9befe394dc8a14e6d58c88ff5e2f512d65a9e0aa9c5c`	`provider`
`RemoveLiquidityImbalance(provider, lp_token_amount, token_amounts, approx_fee, price_scale)`	`RemoveLiquidityImbalance(address,uint256,uint256[2],uint256,uint256)`	`0x22f9ea3e7d7b113cb423896d2e121f96a66c17814ac7f63d69096769fa3e2a55`	`provider`
`NewParameters(mid_fee, out_fee, fee_gamma, adjustment_step_min, adjustment_step_max, ma_time)`	`NewParameters(uint256,uint256,uint256,uint256,uint256,uint256)`	`0xa32137411fc7c20db359079cd84af0e2cad58cd7a182a8a5e23e08e554e88bf0`	None
`RampAgamma(initial_A, future_A, initial_gamma, future_gamma, initial_time, future_time)`	`RampAgamma(uint256,uint256,uint256,uint256,uint256,uint256)`	`0xe35f0559b0642164e286b30df2077ec3a05426617a25db7578fd20ba39a6cd05`	None
`StopRampA(current_A, current_gamma, time)`	`StopRampA(uint256,uint256,uint256)`	`0x5f0e7fba3d100c9e19446e1c92fe436f0a9a22fe99669360e4fdd6d3de2fc284`	None
`ClaimAdminFee(admin, tokens)`	`ClaimAdminFee(address,uint256[2])`	`0x3bbd5f2f4711532d6e9ee88dfdf2f1468e9a4c3ae5e14d2e1a67bf4242d008d0`	`admin`
`SetDonationParameters(duration, donation_protection_period, donation_protection_lp_threshold, donation_shares_max_ratio)`	`SetDonationParameters(uint256,uint256,uint256,uint256)`	`0xfaec9577d11cc0ccde5c7dc231f72c89b0ffeb61e8295d8858c613b54904911a`	None
`SetFeeParameters(reserved_profit_fraction, admin_fee)`	`SetFeeParameters(uint256,uint256)`	`0xd8c40ef62d8608ade62e6c2363caa4cc6909f666deb8c973df9113c41e32950f`	None
`SetPolicyContract(policy)`	`SetPolicyContract(address)`	`0x78e81206388ab3ee5e73c68b87da16f8cc8968c831d517adec68a516c75d09b0`	None	Emitted when the Curve factory admin attaches, replaces, or removes (zero address) the pool policy, or when `initialize` sets it. Watch this event to learn when a policy starts to set the fee or the `price_scale` target
`LPAllowlistChanged(user, allowed)`	`LPAllowlistChanged(address,bool)`	`0x91452c7d2b6a6f6ecfdddb64101731dda875bd3aa8dabdb13fefeeb006b8ed23`	`user`	One event for each added or removed account. A last event with `user` equal to the zero address carries the enabled flag of the allowlist

The pools of markets 0 to 6 (v2.1.0d) emit the same swap and liquidity events. Their admin events differ:

NewParameters(mid_fee, out_fee, fee_gamma, allowed_extra_profit, adjustment_step, ma_time)
SetDonationDuration(duration)
SetDonationProtection(donation_protection_period, donation_protection_lp_threshold, donation_shares_max_ratio)
SetAdminFee(admin_fee)
SetPeriphery(views, math)

These pools have no SetPolicyContract, LPAllowlistChanged, SetFeeParameters, or SetDonationParameters event.

`YBOraclizedPolicy`

To see which policy a pool runs, call POLICY() on the pool or read the pool policy table in Contract addresses. The field types come from the PolicyConfig and OracleConfig structs in Pool policy.

The oracle-report policy, YBOraclizedPolicy, emits these events:

Event	Canonical signature	Topic0	Indexed	Emitted by
`ReportAccepted(asset_price, observation_us, message_us)`	`ReportAccepted(uint256,uint256,uint256)`	`0xcc2313daa47b328dc2d3eb8fedd7c99e0d0d134eb91d27e89e8b52cc68ebe487`	None	`deliver_oracle_report`, when it stores a Pyth Pro (Pyth Lazer) price report. `asset_price` is coin 1 in USD with 18 decimals. Times are in microseconds
`SetPolicyConfig(config)`	`SetPolicyConfig(((uint256,uint256,uint256,uint256),(uint256,uint256,uint256,uint256,uint256),uint256))`	`0x19927097456d776a002179b15a4f1dc977dac114630d3fbe462f841c5a3ca549`	None	Constructor, `set_policy_config`. `config` is the tuple `((base_fee, capture, fallback_fee, relax_time), (fast_half_life, slow_half_life, trend_gate, step_cap, report_lifetime), ratio_tolerance)`
`SetOracleConfig(oracle)`	`SetOracleConfig((address,uint8,uint256,uint256,uint256,uint256))`	`0xd9a84cb9257d0448f56857105eca5c6768319c90411cf9bb2aa880dc4d1fba2c`	None	Constructor, `set_oracle_config`. `oracle` is the tuple `(verifier, channel, past_window_us, future_window_us, min_price, max_price)`. Except at deployment, the policy drops the stored price report price
`SetKilled(is_killed)`	`SetKilled(bool)`	`0xf6a23ecf31263066d4cc1ac21837c1714818045ecc5c0dd89f279e0bd4b7ef87`	None	`set_killed`
`OwnershipTransferred(previous_owner, new_owner)`	`OwnershipTransferred(address,address)`	`0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0`	`previous_owner`, `new_owner`	Ownership changes (snekmate `ownable`)

The pool callback (update_pool_state) and sync emit no event.

`YBTwocryptoPolicy`

YBTwocryptoPolicy emits no events. It sets only the price_scale target, from the pool's own prices.

Error codes: the revert strings of the same contracts, for the calls that fail.
Pool policy: the policy structs behind the SetPolicyConfig and SetOracleConfig tuples.
Contract addresses: the singleton addresses and the pool policy of each pool.

Read the tables​

Core​

LT​

AMM​

VirtualPool​

Factory​

HybridVault​

HybridVaultFactory​

HybridFactoryOwner​

YBLendingOracle​

YBLendingOracleLL​

YBLendingOracleLLFactory​

LTSwapZap​

Core contracts with no events​

DAO​

YB​

VotingEscrow​

GaugeController​

LiquidityGauge​

FeeDistributor​

InflationaryVest​

VestingEscrow​

CliffEscrow​

SnapshotSplitter​

DAO contracts with no events​

Net pressure​

FeeSplitter​

MerklPIDDriver​

PID​

FastGauge​

Net-pressure contracts with no events​

Curve pool and policies​

Curve pool (Twocrypto with policy hook)​

YBOraclizedPolicy​

YBTwocryptoPolicy​

Related​