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: 2142
Hash: 34844cc34cba911c538f8c4c463281689130db703c7d3c4833b6d6f6a0ddd7ee
Previous block: 763d5a38795b622dad3e361e5e4dd0f48563c4a3e4127b9a2161412281ba1e04
Next block: 008022e20fdf2117b29da8a01f8a5913633254656c62e23447c1d0246ce76b1e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964794
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: bea4c15a9774ac1012072c9f68489ffb127dbcb5ea833ec549d449f5593a2935
Median time: 1728964793
Difficulty: 4.656542373906925e-10
Confirmations: 102
Chainwork: 00000000000000000000000000000000000000000000000000000000000010be
Bits: 207fffff