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. mgqFp9Dhy

Height: 2233
Hash: 5debb570cd5f5589c227a988d1ab3e8c68eae96cb605b114f86706c6d81117d3
Previous block: 16126e8ed3c8868950c12218c1f1804702f454cffd621872f7a14b783b3096f1
Next block: 7369a598402be129577c7940791e705857a606e5807cb50e5bc7d0efba61ac2c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964809
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 61f3d2b97584de18701c604d43a1ab670823afd3b7ae911e48bc55e685a9bea8
Median time: 1728964808
Difficulty: 4.656542373906925e-10
Confirmations: 11
Chainwork: 0000000000000000000000000000000000000000000000000000000000001174
Bits: 207fffff