The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1576
Hash: 7e58a323fd87778c21483b915bc4bb85566c7055d9fda1e6961ca50de26448d1
Previous block: 642e006b151229308b8ce5af8c76ab5dad68011c7628434977e75ced1f9e0c84
Next block: 27397dc0986efd32a3ba471f633f0ac6adb81935f61ba09909345007bf60ab1f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697670
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b5c95d8ccc368e1b2adb8c6add8320324cd59827de57873da1f6c4628d20c744
Median time: 1718697669
Difficulty: 4.656542373906925e-10
Confirmations: 668
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c52
Bits: 207fffff