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: 1948
Hash: 2ae6900b00554326d7d16a8769c7c4d0ffc800aaf23d67d244dc10d34bfad7c6
Previous block: 7d62c51021165e42b5319137025136f893204aefca25415887af141c7f6cfac2
Next block: 60f8424cb6884b3a721ddbaa9ec35e63f60682479c76a1d6aed5ae5600d1f70f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159248
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: fea71a2d05b8529075de598b6ad769784c879541eee58064441093099cb433ed
Median time: 1719159247
Difficulty: 4.656542373906925e-10
Confirmations: 296
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f3a
Bits: 207fffff