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: 2403
Hash: 3b803b68f1077b765c2bae7c8b03321b33f262c47e5806ad648925ea48bd2d83
Previous block: 5a958ccd74687e399afc2e8c1a9a06bafed76f3eed22fe18ca35617b63b8be10
Next block: 19bb014bb4cc65063c4ff4cbf60a921b2dbd4a85e42a0a50f5d2a920cb2163bf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847287
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: db6ffb072dd65c369cd286d943d8e000cd67d03e73eb70d792e7798b17b05d86
Median time: 1743847286
Difficulty: 4.656542373906925e-10
Confirmations: 240
Chainwork: 00000000000000000000000000000000000000000000000000000000000012c8
Bits: 207fffff