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: 2313
Hash: 11b0eda35adca9098a50b3207bd9b4b9a9cb014c1648661fe8fdb56174f49b22
Previous block: 6e2d61d032af9e88d56a0135c99337999165d10b64a13a14691fdd935596180d
Next block: 7becf699d78fd0a2356853923335bf6ab75a7681d2cc0001e25b82b382a4d8eb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847272
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: c97c94328d5afde67bb70b8f38e1cedd81b7a2b6b24d4834aef78446dd8dda25
Median time: 1743847271
Difficulty: 4.656542373906925e-10
Confirmations: 330
Chainwork: 0000000000000000000000000000000000000000000000000000000000001214
Bits: 207fffff