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: 2304
Hash: 262f21f7e486c1737e382e7dcc7e6914206a5438ef117d0190dcda1161e13bc4
Previous block: 5787fb7b5bd4d5cf3cac2a5df9cf8098d99500b41669bf3feb700f1b82dead59
Next block: 6aedc242b0d45f84df0f610c523122b4834b1329fbeb68569e6bdf333b486377
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847271
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: c0ef17df02d0b28962104bb17b46670a421b8b73e5752a0d806faae3ab263519
Median time: 1743847270
Difficulty: 4.656542373906925e-10
Confirmations: 339
Chainwork: 0000000000000000000000000000000000000000000000000000000000001202
Bits: 207fffff