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: 1849
Hash: 1bdd6f7b9a25a7f53e693a3f5364a00ce09b92996718c29c1f2f377d673bdc53
Previous block: 376f1226de2a7701882f9084a808958258fa47fc2a4713d8824016b1f43bc4a2
Next block: 3670748cb83540a990739ad55f9cf4649880dd9e9b4dedf787c1c4b6ac944d8e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159231
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: f46a6409a434bf9c22a655fae1917e02d3fc2e1ac367b545f6cccdd901e41426
Median time: 1719159231
Difficulty: 4.656542373906925e-10
Confirmations: 395
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e74
Bits: 207fffff