Transaction Details
Type Trace Address | From | To | Value | Gas Limit |
---|
Transaction Receipt Event Logs
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x610262807FAfB649A8F63942E59c03a4D5b2fE7f
- 2: to 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- value :197537348906943706
Name
ClaimRewards (index_topic_1 address token, index_topic_2 address user, uint256 reward)View Source
Topics
- 0 0x9aa05b3d70a9e3e2f004f039648839560576334fb45c81f91b6db03ad9e2efc9
- 1: token 0xddF26B42C1d903De8962d3F79a74a501420d5F19
- 2: user 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- reward :197537348906943706
Name
Burn (index_topic_1 address owner, index_topic_2 int24 tickLower, index_topic_3 int24 tickUpper, uint128 amount, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x0c396cd989a39f4459b5fa1aed6a9a8dcdbc45908acfd67e028cd568da98982c
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: tickLower -280904
- 3: tickUpper -277696
Data
- amount :0
- amount0 :0
- amount1 :0
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb1BC4B830FCbA2184B92e15b9133c41160518038
- 2: to 0x238C26DDEa068190Fe715b095463B82796F0058B
Data
- value :43403828165695685694
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb1BC4B830FCbA2184B92e15b9133c41160518038
- 2: to 0x238C26DDEa068190Fe715b095463B82796F0058B
Data
- value :18280801
Name
Collect (index_topic_1 address owner, address recipient, index_topic_2 int24 tickLower, index_topic_3 int24 tickUpper, uint128 amount0, uint128 amount1)View Source
Topics
- 0 0x70935338e69775456a85ddef226c395fb668b63fa0115f5f20610b388e6ca9c0
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: tickLower -280904
- 3: tickUpper -277696
Data
Name
Burn (index_topic_1 address owner, index_topic_2 int24 tickLower, index_topic_3 int24 tickUpper, uint128 amount, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x0c396cd989a39f4459b5fa1aed6a9a8dcdbc45908acfd67e028cd568da98982c
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: tickLower -887272
- 3: tickUpper -280904
Data
- amount :0
- amount0 :0
- amount1 :0
Name
Collect (index_topic_1 address owner, address recipient, index_topic_2 int24 tickLower, index_topic_3 int24 tickUpper, uint128 amount0, uint128 amount1)View Source
Topics
- 0 0x70935338e69775456a85ddef226c395fb668b63fa0115f5f20610b388e6ca9c0
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: tickLower -887272
- 3: tickUpper -280904
Data
Name
CollectFees (index_topic_1 address sender, uint256 feeAmount0, uint256 feeAmount1)View Source
Topics
- 0 0xec8208dd791fa8ffdc0d7427f3ba9c0ed06f1bce9a86254e6940c10cc1802fef
- 1: sender 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- feeAmount0 :43403828165695685694
- feeAmount1 :18280801
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: spender 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- value :39063445349126117124
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: to 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- value :39063445349126117124
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
- 2: spender 0xEDE549CA5D22Fd15D135359d04Fd9e34087d01Ab
Data
- value :39063437027323024542
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
- 2: to 0xEDE549CA5D22Fd15D135359d04Fd9e34087d01Ab
Data
- value :39063437027323024542
Topics
- 0 0x52977ea98a2220a03ee9ba5cb003ada08d394ea10155483c95dc2dc77a7eb24b
- 1 0x000000000000000000000000bb3cb9880fb52476e7cc8346d19b2a90de97d96d
- 2 0x000000000000000000000000039e2fb66102314ce7b64ce5ce3e5183bc94ad38
- 3 0x00000000000000000000000000000000000000000000000000000000677f1180
Data
- 0000000000000000000000000000000000000000000000021e1d3502676e149e
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
- 2: to 0x167D87A906dA361A10061fe42bbe89451c2EE584
Data
- value :8321803092582
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: spender 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- value :0
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: spender 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- value :16452720
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: to 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- value :16452720
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
- 2: spender 0xEDE549CA5D22Fd15D135359d04Fd9e34087d01Ab
Data
- value :16452716
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
- 2: to 0xEDE549CA5D22Fd15D135359d04Fd9e34087d01Ab
Data
- value :16452716
Topics
- 0 0x52977ea98a2220a03ee9ba5cb003ada08d394ea10155483c95dc2dc77a7eb24b
- 1 0x000000000000000000000000bb3cb9880fb52476e7cc8346d19b2a90de97d96d
- 2 0x00000000000000000000000029219dd400f2bf60e5a23d13be72b486d4038894
- 3 0x00000000000000000000000000000000000000000000000000000000677f1180
Data
- 0000000000000000000000000000000000000000000000000000000000fb0c6c
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
- 2: to 0x167D87A906dA361A10061fe42bbe89451c2EE584
Data
- value :4
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: spender 0xbb3Cb9880Fb52476E7cC8346d19B2a90DE97d96D
Data
- value :0
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: to 0xe8B8f2467d096740f9F71a3a98B3E424FBc98531
Data
- value :1953172267456305856
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: to 0x896c3f0b63a8DAE60aFCE7Bca73356A9b611f3c8
Data
- value :2387210549113262713
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: to 0xe8B8f2467d096740f9F71a3a98B3E424FBc98531
Data
- value :822636
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: to 0x896c3f0b63a8DAE60aFCE7Bca73356A9b611f3c8
Data
- value :1005444
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: to 0x139f8eCC5fC8Ef11226a83911FEBecC08476cfB1
Data
- value :197537348906943706
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x139f8eCC5fC8Ef11226a83911FEBecC08476cfB1
- 2: to 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- value :1781894278521289182
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x139f8eCC5fC8Ef11226a83911FEBecC08476cfB1
- 2: to 0x6628782a70A0862aCb0EfEF96a4E28B031bb95C5
Data
- value :2469216861336796
Name
Fees (index_topic_1 address sender, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x112c256902bf554b6ed882d2936687aaeb4225e8cd5b51303c90ca6cf43a8602
- 1: sender 0xcC6169aA1E879d3a4227536671F85afdb2d23fAD
Data
- amount0 :0
- amount1 :2469216861336796
Name
Sync (uint256 reserve0, uint256 reserve1)View Source
Topics
- 0 0xcf2aa50876cdfbb541206f89af0ee78d44a2abf8d328e37fa4917f982149848a
Data
- reserve0 :1215775797635112469627027
- reserve1 :133094013646272637491185
Name
Swap (index_topic_1 address sender, uint256 amount0In, uint256 amount1In, uint256 amount0Out, uint256 amount1Out, index_topic_2 address to)View Source
Topics
- 0 0xd78ad95fa46c994b6551d0da85fc275fe613ce37657fb8d5e3d130840159d822
- 1: sender 0xcC6169aA1E879d3a4227536671F85afdb2d23fAD
- 2: to 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- amount0In :0
- amount1In :197537348906943706
- amount0Out :1781894278521289182
- amount1Out :0
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: to 0xa182693dB5c478fA1b294098d6F153E7e0D624f6
Data
- value :8018524253345801
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: to 0x0c16Da76872131bC6095f73b894B4757873dAce1
Data
- value :72166718280112212
Name
ChargeFees (uint256 callFee, uint256 protocolFee)View Source
Topics
- 0 0x5c48b059bc2759d631bf4951f184f5641ca6db26a8ad956276910a01562d59b3
Data
- callFee :8018524253345801
- protocolFee :80185242533458013
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: to 0x4c8c0D2Ca19a97896AA9135449e6d6471a53FC5f
Data
- value :1701709035987831169
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0x4c8c0D2Ca19a97896AA9135449e6d6471a53FC5f
- 2: spender 0x238C26DDEa068190Fe715b095463B82796F0058B
Data
- value :1701709035987831169
Name
Burn (index_topic_1 address owner, index_topic_2 int24 tickLower, index_topic_3 int24 tickUpper, uint128 amount, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x0c396cd989a39f4459b5fa1aed6a9a8dcdbc45908acfd67e028cd568da98982c
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: tickLower -280904
- 3: tickUpper -277696
Data
- amount :0
- amount0 :0
- amount1 :0
Name
Burn (index_topic_1 address owner, index_topic_2 int24 tickLower, index_topic_3 int24 tickUpper, uint128 amount, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x0c396cd989a39f4459b5fa1aed6a9a8dcdbc45908acfd67e028cd568da98982c
- 1: owner 0x238C26DDEa068190Fe715b095463B82796F0058B
- 2: tickLower -887272
- 3: tickUpper -280904
Data
- amount :0
- amount0 :0
- amount1 :0
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x4c8c0D2Ca19a97896AA9135449e6d6471a53FC5f
- 2: to 0x238C26DDEa068190Fe715b095463B82796F0058B
Data
- value :1701709035987831169
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x0000000000000000000000000000000000000000
- 2: to 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- value :1389770895
Name
Deposit (index_topic_1 address sender, index_topic_2 address to, uint256 shares, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x4e2ca0515ed1aef1395f66b5303bb5d6f1bf9d61a353fa53f73f8ac9973fa9f6
- 1: sender 0x4c8c0D2Ca19a97896AA9135449e6d6471a53FC5f
- 2: to 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- shares :1389770895
- amount0 :1701709035987831169
- amount1 :0
Name
DepositForwarded (index_topic_1 address sender, index_topic_2 address vault, index_topic_3 address token, uint256 amount, uint256 shares, address to)View Source
Topics
- 0 0x425e9f077f9db249ef795bd139f30608e86b0b6c06f049e167ddee551b8c891d
- 1: sender 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: vault 0x238C26DDEa068190Fe715b095463B82796F0058B
- 3: token 0x039e2fB66102314Ce7b64Ce5Ce3E5183bc94aD38
Data
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: to 0x610262807FAfB649A8F63942E59c03a4D5b2fE7f
Data
- value :1389770895
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
- 2: spender 0x610262807FAfB649A8F63942E59c03a4D5b2fE7f
Data
- value :115792089237316195423570985008687907853269984665640564039457584003310187442832
Name
Deposit (index_topic_1 address _user, uint256 _value)View Source
Topics
- 0 0xe1fffcc4923d04b559f4d29a8bfc6cda04eb5b0d3c460751c2402c5c5cc9109c
- 1: _user 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- _value :1389770895
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x0000000000000000000000000000000000000000
- 2: to 0x978526df622cE9b02b5A32f4D76C73d066b72FEb
Data
- 0x0000000000000000000000000000000000000000000000000000000052d6388f
Name
Harvest (index_topic_1 address harvester)View Source
Topics
- 0 0x188a622567eeca997c3d494fd65f76ca910b90a50a0c44d5e37b2ea5539e027b
- 1: harvester 0xa182693dB5c478fA1b294098d6F153E7e0D624f6
Data
- 0x
A transaction is a cryptographically signed instruction that changes the blockchain state. Block explorers track the details of all transactions in the network. Learn more about transactions in our Knowledge Base.