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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2085
Hash: 396e4cb2b009ba5e91a89be85b17f7cc76ff332107d84e27807b05b327ba229c
Previous block: 676e20a99f8aa466fae188164e5d8316213dc1848ae78a1ba716c75738d7b29f
Next block: 1e72436916cba4e02190f93c894bcd01a362f0c1c859819c688b76697587afc6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964784
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9f80c3dc77b8bceda8399b9e4e0d4c6135ac174f6426cbaa10890a3f2e0054e9
Median time: 1728964783
Difficulty: 4.656542373906925e-10
Confirmations: 159
Chainwork: 000000000000000000000000000000000000000000000000000000000000104c
Bits: 207fffff