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: 1714
Hash: 38389aecf7af3240a7a1903d885e9e1bbad5993305d99fb41293c8ed7a18b5e6
Previous block: 215377a5117a948a97613fd46eebd11937e6c9e11fe131fcea9d88222f18de81
Next block: 3b23775aa14b70e99195efdedce537f85e57a6675f12d8f8ec68a83ac4d8b32d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159209
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9d14e88175c7e955413dd603f672ef73c726ef9fde2dadc83191b1f93f83865b
Median time: 1719159208
Difficulty: 4.656542373906925e-10
Confirmations: 530
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d66
Bits: 207fffff