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: 1765
Hash: 5e1473d2927d5bcdfc0712a769fa1a35b275ca39797199b69af835e7b48f51a4
Previous block: 7afec2cd3da13041a64aa301660ff8ccdf6aa32db94468b95a43fc6a5f7ecc14
Next block: 075e35ba8fe983a72d92a4935186d29c66bae4c2c3338641ff2c392ae974052d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159217
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9b1bc9ae1d6719a2ce03338aed3e5241a335888b06bab2347dc103d7a202c486
Median time: 1719159217
Difficulty: 4.656542373906925e-10
Confirmations: 479
Chainwork: 0000000000000000000000000000000000000000000000000000000000000dcc
Bits: 207fffff