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: 1211
Hash: 39672a5a1c433794512b1fc33472580ba9f21983aee8924b5c13e657fbc90950
Previous block: 095457faaef48db44b654fad5460250a86a67cb3d449c71df67b23deff7ca896
Next block: 67c2d5f31198b811ec0a9a6f258d06107b1b9807ba211b74289153fdd429d053
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697609
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 7f458259f943a2ae3536556fde54d77d45eeae47cfaeed96fdbb94f7ce801a55
Median time: 1707857869
Difficulty: 4.656542373906925e-10
Confirmations: 1033
Chainwork: 0000000000000000000000000000000000000000000000000000000000000978
Bits: 207fffff