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: 833
Hash: 34db37600a9c866d148bbd61f3332ccc6148f7d2cc82b1c40b836ab372dc31e9
Previous block: 6a180935ef85ef3e961f8859a49c908041253a14a9db6b637dcc98dd828cefcf
Next block: 21b3adb0970faa105bb4e8e7109b6694fdb04bfb08c64d21512ca91fb737a42b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857807
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 599543c3d55c5f699da95e6aeaaa14918f865b191ca68b243f42f5590266811d
Median time: 1707857806
Difficulty: 4.656542373906925e-10
Confirmations: 1411
Chainwork: 0000000000000000000000000000000000000000000000000000000000000684
Bits: 207fffff