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: 2114
Hash: 26f9547a3fff09e2bc34c709d3148ce5a089ac069e61496f114c12978a34127f
Previous block: 3a5a0d53731e604d67160f0844c78d632d7942dbbeb6e9bbceb98c10ac5d5286
Next block: 2041abb0967fe3f23b36b435d73a7b956b346e6ec9274a28b33c21ac88db8dfd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964789
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 886a45839c8684650c4ecc88e41aeb57614aec95bbb9eb4d9ba961f2745baecb
Median time: 1728964788
Difficulty: 4.656542373906925e-10
Confirmations: 130
Chainwork: 0000000000000000000000000000000000000000000000000000000000001086
Bits: 207fffff