Transaction Details
Type Trace Address | From | To | Value | Gas Limit |
---|
AA Txn Hash | Method | Position | From | Internal Txns | Token Txns | NFT Txns | Txn Fee (ETH) | Gas Limit |
---|
Transaction Receipt Event Logs
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- value :179512818813000000000
-
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 0x72d158eEEd476B875Ec4E50bd56834c1DBfd372D
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :30439435651498422950
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0x72d158eEEd476B875Ec4E50bd56834c1DBfd372D
Data
- value :179512818813000000000
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 price, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: recipient 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0 :-30439435651498422950
- amount1 :179512818813000000000
- price :192563351589001983794202528536
- liquidity :15736710702409905035134
- tick :17762
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0x832e2bb9579f6fF038d3E704Fa1BB5B6B18a6521
Data
- value :359025637626000000000
-
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 0x832e2bb9579f6fF038d3E704Fa1BB5B6B18a6521
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :60634848896702222213
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x832e2bb9579f6fF038d3E704Fa1BB5B6B18a6521
- 2: to 0x6515c3aE62116D6A2F2B2bb0AF05B77D445110a4
Data
- value :3590256376260000000
Name
Fees (index_topic_1 address sender, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x112c256902bf554b6ed882d2936687aaeb4225e8cd5b51303c90ca6cf43a8602
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- amount0 :0
- amount1 :3590256376260000000
Name
Sync (uint256 reserve0, uint256 reserve1)View Source
Topics
- 0 0xcf2aa50876cdfbb541206f89af0ee78d44a2abf8d328e37fa4917f982149848a
Data
- reserve0 :87741159072550022370010
- reserve1 :514685278593608210001950
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 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0In :0
- amount1In :359025637626000000000
- amount0Out :60634848896702222213
- amount1Out :0
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0xE6aA7CA47DDb6203e71d4D1497959Da51F87AA98
Data
- value :323123073863400000000
-
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 0xE6aA7CA47DDb6203e71d4D1497959Da51F87AA98
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :54562465030919674323
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xE6aA7CA47DDb6203e71d4D1497959Da51F87AA98
- 2: to 0x2493b7809F8ED73224A6867A8b82b7329FA598a7
Data
- value :129249229545360000
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xE6aA7CA47DDb6203e71d4D1497959Da51F87AA98
- 2: to 0x224a387Caa27d358cfE43411D593a5D8A27B174B
Data
- value :3101981509088640000
Name
Fees (index_topic_1 address sender, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x112c256902bf554b6ed882d2936687aaeb4225e8cd5b51303c90ca6cf43a8602
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- amount0 :0
- amount1 :3231230738634000000
Name
Sync (uint256 reserve0, uint256 reserve1)View Source
Topics
- 0 0xcf2aa50876cdfbb541206f89af0ee78d44a2abf8d328e37fa4917f982149848a
Data
- reserve0 :94536118079154185832946
- reserve1 :554571482878534676592435
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 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0In :0
- amount1In :323123073863400000000
- amount0Out :54562465030919674323
- amount1Out :0
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- value :143610255050400000000
-
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 0xdF7A37C270CFcd8Ae9947a907D8C7ED6b188EDA4
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :24242663441839223787
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0xdF7A37C270CFcd8Ae9947a907D8C7ED6b188EDA4
Data
- value :143610255050400000000
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: recipient 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0 :-24242663441839223787
- amount1 :143610255050400000000
- sqrtPriceX96 :192566782540612800952105584379
- liquidity :247690374478634908562177
- tick :17763
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- value :35902563762600000000
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: spender 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Data
- value :35902563762600000000
-
Address
- 0xba12222222228d8ba445958a75a0704d566bf2c8 (Beets: Vault V2)
Name
Swap (index_topic_1 bytes32 poolId, index_topic_2 address tokenIn, index_topic_3 address tokenOut, uint256 amountIn, uint256 amountOut)View Source
Topics
- 0 0x2170c741c41531aec20e7c107c24eecfdd15e69c9bb0a8dd37b1840b9e0b207b
- 1: poolId 2FC17BDEA0A3D2164A7FF63CBC32DE2DBBA88756000100000000000000000087
- 2: tokenIn 0x9fDbC3f8Abc05Fa8f3Ad3C17D2F806c1230c4564
- 3: tokenOut 0x3bcE5CB273F0F148010BbEa2470e7b5df84C7812
Data
- amountIn :35902563762600000000
- amountOut :993166578482028
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Data
- value :35902563762600000000
-
Address
- 0x3bce5cb273f0f148010bbea2470e7b5df84c7812 (Rings: scETH Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 amount)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xBA12222222228d8Ba445958a75a0704d566BF2C8
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- amount :993166578482028
-
Address
- 0x3bce5cb273f0f148010bbea2470e7b5df84c7812 (Rings: scETH Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 amount)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: spender 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Data
- amount :993166578482028
-
Address
- 0xba12222222228d8ba445958a75a0704d566bf2c8 (Beets: Vault V2)
Name
Swap (index_topic_1 bytes32 poolId, index_topic_2 address tokenIn, index_topic_3 address tokenOut, uint256 amountIn, uint256 amountOut)View Source
Topics
- 0 0x2170c741c41531aec20e7c107c24eecfdd15e69c9bb0a8dd37b1840b9e0b207b
- 1: poolId CE2F25747F06A9673128BB8A84DA3B6E45347D61000100000000000000000080
- 2: tokenIn 0x3bcE5CB273F0F148010BbEa2470e7b5df84C7812
- 3: tokenOut 0x29219dd400f2Bf60E5a23d13Be72B486D4038894
Data
- amountIn :993166578482028
- amountOut :3259502
-
Address
- 0x3bce5cb273f0f148010bbea2470e7b5df84c7812 (Rings: scETH Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 amount)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Data
- amount :993166578482028
-
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 0xBA12222222228d8Ba445958a75a0704d566BF2C8
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- value :3259502
-
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 0x9f46dd8F2A4016C26c1Cf1f4ef90e5E1928D756B
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :6060732368492218197
-
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 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0x9f46dd8F2A4016C26c1Cf1f4ef90e5E1928D756B
Data
- value :3259502
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 price, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: recipient 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0 :-6060732368492218197
- amount1 :3259502
- price :58086350510379151487734
- liquidity :1052245772477740659
- tick :-282533
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- value :2369569208331600000000
-
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 0x1f4eFC47e5A5Ab6539d95A76e2dDE6d74462acEa
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :399918976044341932084
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0x1f4eFC47e5A5Ab6539d95A76e2dDE6d74462acEa
Data
- value :2369569208331600000000
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: recipient 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0 :-399918976044341932084
- amount1 :2369569208331600000000
- sqrtPriceX96 :192378653635719875526732281153
- liquidity :12356858666415862878108565
- tick :17743
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: to 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
Data
- value :179512818813000000000
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: recipient 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- amount0 :-30296078404126619600
- amount1 :179512818813000000000
- sqrtPriceX96 :192379263810555672863545489606
- liquidity :1266841933071405039492306
- tick :17743
-
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 0x1A99981E990F1210630034b6496C8d20E1E3b929
- 2: to 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- value :30296078404126619600
-
Address
- 0x9fdbc3f8abc05fa8f3ad3c17d2f806c1230c4564 (GOGGLES: GOGLZ Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xba7bAC71a8Ee550d89B827FE6d67bc3dCA07b104
- 2: to 0x1A99981E990F1210630034b6496C8d20E1E3b929
Data
- value :179512818813000000000
Name
Swap (index_topic_1 address fromAddress, index_topic_2 address toAddress, address fromAssetAddress, address toAssetAddress, uint256 amountIn, uint256 amountOut)View Source
Topics
- 0 0x20efd6d5195b7b50273f01cd79a27989255356f9f13293edc53ee142accfdb75
- 1: fromAddress 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
- 2: toAddress 0xb35c6D46d4B5aD17368ADFB31BadAE041E70f4C6
Data
- fromAssetAddress :0x9fDbC3f8Abc05Fa8f3Ad3C17D2F806c1230c4564
- toAssetAddress :0x039e2fB66102314Ce7b64Ce5Ce3E5183bc94aD38
- amountIn :3590256376260000000000
- amountOut :606155199837920313154
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.