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: 163
Hash: 43bfcea57f040a99f0cad5d60daff9c2e9d81b590271bded748e2ba82da9465a
Previous block: 46bd91c9d768f5d59283994bf782ee2c61d447c5690144e2dc97c4cdc9ba8f25
Next block: 747d649cd102e32b6a7154dd755f1ccabc0e96a24425dfd752c79fe39bcf176a
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597894
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: e1e52775595f7e143120db5dad87c270727f4a88f7c00e384642e9bab37f26b1
Median time: 1701597894
Difficulty: 4.656542373906925e-10
Confirmations: 2081
Chainwork: 0000000000000000000000000000000000000000000000000000000000000148
Bits: 207fffff