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: 1609
Hash: 3888e41b8a1f97ae80b6c3fbec26598ed9f1bb1ef284b054c2d46adc7f818d9f
Previous block: 5d20e988d9d01ba201d358f250c29d14a7224bc956ffca16b11df96c77e3da06
Next block: 2c568a888d59b271f7df2b4d3dd11e5dfe6c269ff81658a34c5ae5b14786c5ab
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718709062
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 605a5c33b8160d650f9ee79a11342851708d9a60a0d2a70d7454929498e91ebb
Median time: 1718697675
Difficulty: 4.656542373906925e-10
Confirmations: 635
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c94
Bits: 207fffff