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: 1774
Hash: 65d68d7221e5d6f7fb78a0a09eaf222a9e50ac719abd7e6b25b6dbefd4f66de9
Previous block: 77600faa99eabe2b7a2adcd8a5922962ce853ed0a51b18f7d9bfffdae9b27a65
Next block: 7d9476ca3184d930945cabb7f7de688a488f19eba7b7cf1e9cb76159e4902e48
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159219
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 02b52822682f2f1da56f26dc43306a381aa8abdf9c908293a0464ddca8d9e2fc
Median time: 1719159218
Difficulty: 4.656542373906925e-10
Confirmations: 470
Chainwork: 0000000000000000000000000000000000000000000000000000000000000dde
Bits: 207fffff