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: 2478
Hash: 293d5e15081954cc0fb2a20a926870347540f5b31a93819d9e60a8dc95e49afb
Previous block: 5193268f6ad4ac2ede00e8a5ab81901d8353a7e3a3bfd585d2cee090454bf5b4
Next block: 3ad553f108ab9c5a14a73b9b2f3027a81a2800773791e5539923116b3687813f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847300
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: fce85c5bdc25f2ac5029a374549e7caac22334465672375a1e608d21c8bdf326
Median time: 1743847299
Difficulty: 4.656542373906925e-10
Confirmations: 165
Chainwork: 000000000000000000000000000000000000000000000000000000000000135e
Bits: 207fffff