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: 1347
Hash: 204babf4fea8245330c33dfb782154acfa3db44af70d0c4658cd02a939b85a5d
Previous block: 23d3b5031012f7b2ed3ca1553853e4bd18145856a2f015f3535af5fcec700973
Next block: 084b87c50619480eaf75e9288483185e2a91294a2ffed391f3215f96283e04a7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697632
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 1e8fa56d5eb725fd232578987cffc090596c0cd8f267f5056777f205d7de9ea9
Median time: 1718697631
Difficulty: 4.656542373906925e-10
Confirmations: 897
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a88
Bits: 207fffff