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: 2152
Hash: 63493e1f1a8796db4a500fd2c1e0e4932ab954e33af57c487ad07840875564bd
Previous block: 10dcfcdf5bccde4bd99c8070d50fce9a85b92e3b3f9317633ef19655f95c3be4
Next block: 605ff98a815396fbf40ead4e2a322c4d94800903a033a5ec0ba75a5286ae1860
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964795
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 64b65bd190231866fd3f35b083df4d3647e6afe50ed9611664f63079b7d11e95
Median time: 1728964794
Difficulty: 4.656542373906925e-10
Confirmations: 92
Chainwork: 00000000000000000000000000000000000000000000000000000000000010d2
Bits: 207fffff