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: 2026
Hash: 6c7f9b9bed387059c45967370b8922425ed30d8e4fdfda98c79a2e503a8a05b0
Previous block: 3df8987587e263f24df85f3d842a36fbf0fb099ba0714ae57dcc29448c508066
Next block: 65e46924ee886090e5b509282a4d6a9b482d3685d4276e5769b7952cc5224a19
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964774
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5b4d0affea33c0127c6cff78ac965c7a882c958400fb8efcefea13eac64b7a8a
Median time: 1728964773
Difficulty: 4.656542373906925e-10
Confirmations: 218
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fd6
Bits: 207fffff