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: 178
Hash: 3881b3fa39c19f67a3522a0507252716c3a2b602a2d87a21fe78ff01e1e52493
Previous block: 0876cc773393ad301fa15fb89895fa26098566b10518820b3259b28a3098d7e8
Next block: 44c0c3378df8da4899248ca77b9d8dd64016599e5742162120203280f20a909d
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597897
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: d9fce5673bd316f9bbfe0b3b76f6bd5d029217744a30e9cbaed8d56f1b4fdc9d
Median time: 1701597896
Difficulty: 4.656542373906925e-10
Confirmations: 2066
Chainwork: 0000000000000000000000000000000000000000000000000000000000000166
Bits: 207fffff