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: 1931
Hash: 109bc86640e054b4a1151b6d889300dbe510920988b2c23614947af047a1c238
Previous block: 6a44bd7b28b2ace537eab73e8d35e75a52abd61312b23315d8391e1638673b7c
Next block: 10d2fe6035b9b2630bdac43168654caad0ef9c040414c900dca27f3afbd44400
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159245
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: c3fc55d593adfaf16e47da713de216eed96c7512b6ec9b15782a2c14765b0594
Median time: 1719159244
Difficulty: 4.656542373906925e-10
Confirmations: 313
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f18
Bits: 207fffff