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: 1135
Hash: 570cd214a619b04eb3c070548c80655d4b6717d2d4f3aff83ebf2b2ea8eebb6b
Previous block: 5c2dbe3d6e456dea7256473d9352be8ce8f0cc52af82dc78ad9a6f394820f985
Next block: 60290643c6ec09454a1a644d6af7911362055ec18cd1b1fd1f8d38f1b0ff60c3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857858
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 55df42a0b976a255e0524b966274ef33d4ddc98cbf7f68b7c8293a9b4fad0950
Median time: 1707857857
Difficulty: 4.656542373906925e-10
Confirmations: 1109
Chainwork: 00000000000000000000000000000000000000000000000000000000000008e0
Bits: 207fffff