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: 2033
Hash: 5e1e633f990e6a4b0809e7ec691e2f29e9f915951ec242a90d7e4af994f3ff94
Previous block: 101e10c63f6df583d04bcbd4101e8ecaae75db686bbe2185d1c1fef853bb070b
Next block: 37b066bc9373002744fe5b920a37cc6759743b82c6ecd2dd7aaae9e3a66d1318
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964775
Stripped size: 218
Size: 254
Nonce: 6
Merkle root: 44e4e17b44e183a6db9b0972efd5b666f0c332e2b68d4e9d6a8ba06574270ace
Median time: 1728964775
Difficulty: 4.656542373906925e-10
Confirmations: 211
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fe4
Bits: 207fffff