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: 2549
Hash: 0f29a4a4388d8236c40bfefa54e8e505655cc303c9791267cb22b883e5419d92
Previous block: 633f23a198489c177a83ec2cac5766114d5bf600e4354a6952a5a243a5d291f1
Next block: 2a14f6c2f180d3cd841b0d0b8bafac1247332865a515ac322e8091226864857c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847311
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 141c15c3cc3a3cd7b9bfaa681c1c928a08be3efdf1bd5e4693d577b2be1654b8
Median time: 1743847311
Difficulty: 4.656542373906925e-10
Confirmations: 94
Chainwork: 00000000000000000000000000000000000000000000000000000000000013ec
Bits: 207fffff