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: 2075
Hash: 5a05e7b201d7d7c4c1a9bb94af96520272391d1274decbc451f919bff2edc673
Previous block: 00add7dab2da497ec5e96b6dec90db0dc01bdc8c133fb360d4709a22ff3e4dac
Next block: 6d8a877424d4a2eae1b8d0ee02eb17cbe6879e63f0f6c9f8327011ca1c833f45
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964782
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 7aee50f389ce5171219152b8dc89cb32d19afc64635b380e9f4016d4d9f05b1e
Median time: 1728964782
Difficulty: 4.656542373906925e-10
Confirmations: 169
Chainwork: 0000000000000000000000000000000000000000000000000000000000001038
Bits: 207fffff