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: 1170
Hash: 366d35e51eb1d4c7d14fa7b6784bc8e7cf16aff524a6ed63ce535d2df06894fa
Previous block: 631a24ed65e5a52001c7452f2cd0b2d4f457237ea084e4c652b8172e1ca2cad4
Next block: 370e30b29ce6efad99df394762c120ca8f303ad8db4614161ff330463a0894c4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857863
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: bc3be3b978d15e88917fcc47b57ef2048d086c4b7f8166f2bc9f00723a54afc4
Median time: 1707857863
Difficulty: 4.656542373906925e-10
Confirmations: 1074
Chainwork: 0000000000000000000000000000000000000000000000000000000000000926
Bits: 207fffff