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: 2305
Hash: 6aedc242b0d45f84df0f610c523122b4834b1329fbeb68569e6bdf333b486377
Previous block: 262f21f7e486c1737e382e7dcc7e6914206a5438ef117d0190dcda1161e13bc4
Next block: 4afb4013186b8a43f0c2a9c2cd9f3ef979d75473d9b5ea274a8cdc441033426a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847271
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 57dff4396d8de44b8c7e8f6e7e41d08f87f332a06ba57ad0dc72754ad2a5d35a
Median time: 1743847270
Difficulty: 4.656542373906925e-10
Confirmations: 338
Chainwork: 0000000000000000000000000000000000000000000000000000000000001204
Bits: 207fffff