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: 2450
Hash: 0aa80edfccc90726b466f39f43464a44d9c3a844705a74b51ce308318b094824
Previous block: 389b7f77ccd67ba743bba73b6b278e476202f85dcea2184d2afbb2ea77a50c86
Next block: 7fd51c7fc4d09194ba14be078854c76c8bfd50ebc28888683a265b87e72d5f2f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847295
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bb94f92f64ccd951a78d00d3c022816a4b349e6c949457c185c8340dc4b425bb
Median time: 1743847294
Difficulty: 4.656542373906925e-10
Confirmations: 193
Chainwork: 0000000000000000000000000000000000000000000000000000000000001326
Bits: 207fffff