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: 1699
Hash: 1fd41c09100bb71a539d2bf872eb00f99bacae8d8f74a00389e25e4da0a9e44f
Previous block: 5ad846cc17753a9ce232a622cc149e8f22ced10012f556aa5cf0bacd11c2ae75
Next block: 2469a836a7f4dd927e9acf1ccf5983e838031d980ae82fc3eea73b0fcd7c80d0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159206
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3b11e8b723b4a1b9d7340a9561f9dd31e26e24a906b7e6282a90b4b28f91c8c5
Median time: 1719159206
Difficulty: 4.656542373906925e-10
Confirmations: 545
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d48
Bits: 207fffff