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: 14
Hash: 1faec8423043ec98968608823620b36ae8bc8c7b5ef2c1485d17d90cef04569c
Previous block: 2c5c7bde9ecf95b823b4325b8acb86f59176dd945079177df714c30c21b2b1ad
Next block: 193c0581718829d9523674b65253079b360071b3dadc5873e4d24305a94a95ad
Weight: 864
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597870
Stripped size: 216
Size: 216
Nonce: 2
Merkle root: 76c2ebe90e05497dff1cf23fda88c941e5534112bd4114b293675006d97a555e
Median time: 1701597869
Difficulty: 4.656542373906925e-10
Confirmations: 2230
Chainwork: 000000000000000000000000000000000000000000000000000000000000001e
Bits: 207fffff