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: 1788
Hash: 22b279cf0a4b71f3344306a35ca1ed61ac4b0df1daa44867c6b496c9a749bd6d
Previous block: 2e0a3929fc2385b542c4c1c0a6f8699a8f1319c5ad2513d9ff568f9183494f09
Next block: 4f6319b310d6ba2bd8db975fdd5d9f95a1919e28d5e7b33879fc6628ab4dccc9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159221
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 68dca5483a7b3a7318932418742ac36b69feea9fdc967440153416ce4669d6ef
Median time: 1719159220
Difficulty: 4.656542373906925e-10
Confirmations: 456
Chainwork: 0000000000000000000000000000000000000000000000000000000000000dfa
Bits: 207fffff