Transaction Details
AA Txn Hash | Method | Position | From | Internal Txns | Token Txns | NFT Txns | Txn Fee (ETH) | Gas Limit |
---|
Transaction Receipt Event Logs
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5002
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5002
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5003
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5003
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5090
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5090
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5094
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5094
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5342
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5342
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5348
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5348
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 5752
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 5752
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 6015
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 6015
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 6018
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 6018
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 6698
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 6698
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 7017
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 7017
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 7845
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 7845
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8010
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8010
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8011
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8011
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8012
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8012
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8176
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8176
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8258
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8258
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8267
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8267
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8682
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8682
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 8812
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 8812
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 9081
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 9081
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 9542
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 9542
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 9549
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 9549
Data
- value :1649549928
-
Address
- 0xc799f57355677a19b91c722734743215513dece5 (Shattered Eon: Colonists Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, index_topic_3 uint256 tokenId)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: to 0x3d35818b29c61eF9E5F1D5B88FD9168636A888a7
- 3: tokenId 9857
Data
- 0x
Name
ColonistStaked (index_topic_1 address sOwner, index_topic_2 uint256 tokenId, uint256 value)View Source
Topics
- 0 0x2b0c57bc9ee0e1fb27b985c9453637992f5ed5b1b8f7b4e8d5f0b5d7d4252809
- 1: sOwner 0xd2f04d6D18974D3f5812F44e6Edc8bBcfd5ba200
- 2: tokenId 9857
Data
- value :1649549928
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.