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: 1189
Hash: 16627ceb1e4840fddfe852fd824f4a70572637cb08fe9a6057d700fb95e6b60d
Previous block: 2479c6547a81ad137bd376dfe46f97f37814c769daf02bc4c799c48956cac4f1
Next block: 11eeb9fd8d9e95f27538d896fe6e244e651aeec0aac886df511eaa40076bb75a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857867
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 8a94c7da42fc7a06f79a4dde8ccedb476068f2ac6c6ef83eaac3590ff67b0bf7
Median time: 1707857866
Difficulty: 4.656542373906925e-10
Confirmations: 1055
Chainwork: 000000000000000000000000000000000000000000000000000000000000094c
Bits: 207fffff