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: 562
Hash: 7b6737df228c2798ae8b1bb0915ed7f5ec4aea5c138a4416c85c76f10f8b7c29
Previous block: 395e51585c5890844c6e71e7c56792a35d2d76b4da2df7034b2cc428effc6ebd
Next block: 03f0b6979801d48d9ab150625df00188f8b12f93f05d257e412e76678304c2d4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864237
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 6ae155839e95e2d9a8db85df83bc21b01e129dd916c014987367d5e6df762d4d
Median time: 1701864236
Difficulty: 4.656542373906925e-10
Confirmations: 1682
Chainwork: 0000000000000000000000000000000000000000000000000000000000000466
Bits: 207fffff