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: 205
Hash: 7ecbb877e492ce7b0adc5efcd5284d882a960e9586821912b6ec3f9649850453
Previous block: 504863158c53cc6c8013555a0a2e18a56d4c8cd529d084fa46b8a34341370efd
Next block: 0402f32c6ab3eecd03e1b6a69526028bde7a65f1cd71fbee3d8b09c37ee950c5
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597901
Stripped size: 218
Size: 218
Nonce: 3
Merkle root: d685db8ab4a3eee71f5532d9184be73f83898e4f14dd0efb82c0265102763ff4
Median time: 1701597901
Difficulty: 4.656542373906925e-10
Confirmations: 2039
Chainwork: 000000000000000000000000000000000000000000000000000000000000019c
Bits: 207fffff