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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2298
Hash: 749f6912467d712d7296c5a0fc10141f5dc3dd014355f6239c901616103ed948
Previous block: 420fde101dea22f61e458c20ce19d70045e6254ed1da55dbb75d609838a52ad4
Next block: 1c0c26518f2700353b8ae6dd306f285956b64c36e75e186cf949469b1e20f6df
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847270
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 58ce0c658935b6036438e35eb695782ffebeec0413da7035941ed0958203ab32
Median time: 1743847269
Difficulty: 4.656542373906925e-10
Confirmations: 345
Chainwork: 00000000000000000000000000000000000000000000000000000000000011f6
Bits: 207fffff