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: 1875
Hash: 0a8e053a7960899ad45d3eadd6cc1af4c7673eecf3e4597cd03fec14ce302c65
Previous block: 2af6721f77cb58cb642f352d2279624fc4e763c1ce395a33599e283223f043d8
Next block: 7cab6c7b1210b4f28d07977b8ab87c4db6d527ca47008c337bb47b3115f3522d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159236
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0b6f378b7369f183c20ec1d6802fcfa50edbeecffb9ec72f5185368c8d103884
Median time: 1719159235
Difficulty: 4.656542373906925e-10
Confirmations: 369
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ea8
Bits: 207fffff