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: 2046
Hash: 07535857b5d77c4c5864a0c7d6edc3d17d87d16a11db4e6bc9948bd13f41f44d
Previous block: 042f1de35379d3b694df275a70e7879bbd02e5024eab27b48523b77c953d95e1
Next block: 1517968cfe70f88d2863376aa284eeb3420884b26dc11e01efd594599d7070b6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964778
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 63fd1072f8c6aa95fa289d3e432cbdab653d45dec2d1c10ebea809458ec07c3a
Median time: 1728964777
Difficulty: 4.656542373906925e-10
Confirmations: 198
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ffe
Bits: 207fffff