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: 2167
Hash: 4cf37512c8191ce2f8c9cdd27ed461bb207a3a940b7437574b50e339314496fd
Previous block: 24ac6e7a8c0ac490b04131208689e1fc823fa13c72ff9bbb2413ca6af8defe54
Next block: 570a3e209b79308f7dde8e482499d35c7d171dcd2b3e19a391bf2efe11383b26
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964798
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 711fea5cd532c1dcee3b0b6edb02fa08708d07deb154417baa457b73b45b0a7f
Median time: 1728964797
Difficulty: 4.656542373906925e-10
Confirmations: 77
Chainwork: 00000000000000000000000000000000000000000000000000000000000010f0
Bits: 207fffff