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: 2635
Hash: 1ab47c9425a3757c4cc83c1e9d03d7e8bdd158698ad57d5a85be0ca2dc16fe54
Previous block: 54f2809d780e278fabb49140e3c60245b59b13b9cdddbf0d790b789fa189e31e
Next block: 7c4d05686b1268aa6c6ada4e8114e63aec9ab6c3ad22c70db034fab9f9f0649a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847326
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5217e958febb4469a3db10c80db3447ca32305164a3601d4801b7fc806dac518
Median time: 1743847325
Difficulty: 4.656542373906925e-10
Confirmations: 8
Chainwork: 0000000000000000000000000000000000000000000000000000000000001498
Bits: 207fffff