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: 1608
Hash: 5d20e988d9d01ba201d358f250c29d14a7224bc956ffca16b11df96c77e3da06
Previous block: 7425b17b66426fcc4a52862cb9900dc81dd866905ed96c133a252b9c513a7a6b
Next block: 3888e41b8a1f97ae80b6c3fbec26598ed9f1bb1ef284b054c2d46adc7f818d9f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697675
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 654d775a0ec7cbce9a47e4a60afc579b5a24556398da4d0abda5a6cef002238a
Median time: 1718697675
Difficulty: 4.656542373906925e-10
Confirmations: 636
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c92
Bits: 207fffff