Transaction Details
![](/images/opensea-logomark-full-colored.png)
The contract call From 0x76815b9F...02fBFfBd1 To 0x00000000...9852d0dD6 produced 20 Internal Transactions
Transaction Receipt Event Logs
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x7c04D512359d5bfd02b887cb9C0963BBE858A09B
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 0cf9dbfa366cce89218b463d4a656c0e97b66a6cf13ec5ed26d74e0137dfd5fa
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001b2f0b4fbb2c00
- 0000000000000000000000007c04d512359d5bfd02b887cb9c0963bbe858a09b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000000022f856977400
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x7c04D512359d5bfd02b887cb9C0963BBE858A09B
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 0cf9dbfa366cce89218b463d4a656c0e97b66a6cf13ec5ed26d74e0137dfd5fa
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001b2f0b4fbb2c00
- 0000000000000000000000007c04d512359d5bfd02b887cb9c0963bbe858a09b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000000022f856977400
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x65975227CC9d3f208359558DF281f41876101e2b
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 04c6eb428638edce877e6cd05a3a0cc397ff8c1bef4d63e1779feed15857fc0a
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001949541b305800
- 00000000000000000000000065975227cc9d3f208359558df281f41876101e2b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000a5fb97abe800
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x65975227CC9d3f208359558DF281f41876101e2b
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 04c6eb428638edce877e6cd05a3a0cc397ff8c1bef4d63e1779feed15857fc0a
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001949541b305800
- 00000000000000000000000065975227cc9d3f208359558df281f41876101e2b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000a5fb97abe800
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x1AD1D1023b660033ee6f1730E68efd6a9BD3eC9B
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- ca924f5feb756458322d99a0cc625bb18bd9fdfbde0665c10bbcb0720a52a391
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000019739ebb2bc000
- 0000000000000000000000001ad1d1023b660033ee6f1730e68efd6a9bd3ec9b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000000020bde7364000
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x65975227CC9d3f208359558DF281f41876101e2b
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 04c6eb428638edce877e6cd05a3a0cc397ff8c1bef4d63e1779feed15857fc0a
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001949541b305800
- 00000000000000000000000065975227cc9d3f208359558df281f41876101e2b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000a5fb97abe800
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x7c04D512359d5bfd02b887cb9C0963BBE858A09B
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 0cf9dbfa366cce89218b463d4a656c0e97b66a6cf13ec5ed26d74e0137dfd5fa
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001b2f0b4fbb2c00
- 0000000000000000000000007c04d512359d5bfd02b887cb9c0963bbe858a09b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000000022f856977400
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x65975227CC9d3f208359558DF281f41876101e2b
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 04c6eb428638edce877e6cd05a3a0cc397ff8c1bef4d63e1779feed15857fc0a
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001949541b305800
- 00000000000000000000000065975227cc9d3f208359558df281f41876101e2b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000a5fb97abe800
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x65975227CC9d3f208359558DF281f41876101e2b
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 04c6eb428638edce877e6cd05a3a0cc397ff8c1bef4d63e1779feed15857fc0a
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001949541b305800
- 00000000000000000000000065975227cc9d3f208359558df281f41876101e2b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000a5fb97abe800
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
-
Address
- Seaport 1.4
Name
OrderFulfilled (bytes32 orderHash, index_topic_1 address offerer, index_topic_2 address zone, address recipient, tuple[] offer, tuple[] consideration)View Source
Topics
- 0 0x9d9af8e38d66c62e2c12f0225249fd9d721c54b83f48d9352c97c6cacdcb6f31
- 1: offerer 0x65975227CC9d3f208359558DF281f41876101e2b
- 2: zone 0x004C00500000aD104D7DBd00e3ae0A5C00560C00
Data
- 04c6eb428638edce877e6cd05a3a0cc397ff8c1bef4d63e1779feed15857fc0a
- 00000000000000000000000076815b9f470902e5785862eb9c37c3402fbffbd1
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000000000000000000000120
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000003
- 000000000000000000000000e70659b717112ac4e14284d0db2f5d5703df8e43
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000001
- 0000000000000000000000000000000000000000000000000000000000000002
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 000000000000000000000000000000000000000000000000001949541b305800
- 00000000000000000000000065975227cc9d3f208359558df281f41876101e2b
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000000000000000
- 0000000000000000000000000000000000000000000000000000a5fb97abe800
- 000000000000000000000000f7e2f5919081fb9ff8d13fd340351f450cf33095
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x7c04D512359d5bfd02b887cb9C0963BBE858A09B
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x7c04D512359d5bfd02b887cb9C0963BBE858A09B
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x65975227CC9d3f208359558DF281f41876101e2b
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x65975227CC9d3f208359558DF281f41876101e2b
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x1AD1D1023b660033ee6f1730E68efd6a9BD3eC9B
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x65975227CC9d3f208359558DF281f41876101e2b
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x7c04D512359d5bfd02b887cb9C0963BBE858A09B
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x65975227CC9d3f208359558DF281f41876101e2b
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x65975227CC9d3f208359558DF281f41876101e2b
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
Name
TransferSingle (index_topic_1 address operator, index_topic_2 address from, index_topic_3 address to, uint256 id, uint256 value)View Source
Topics
- 0 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62
- 1: operator 0x1E0049783F008A0085193E00003D00cd54003c71
- 2: from 0x65975227CC9d3f208359558DF281f41876101e2b
- 3: to 0x76815b9F470902E5785862eB9C37C3402fBFfBd1
Data
- id :2
- value :1
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.