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. mupBAc74k

Height: 2238
Hash: 5fb5a9fdfbc3232dd3498e6abe333de81264eac4504bd2c8dffe9f47b84c12c4
Previous block: 301a47adb85ac43c2b2923460482028b71e021dc0e6054c401525098973be7fa
Next block: 2044120c24cd6cdef0158c0a53871afffd7988a48a97145739a7ecadb75b5036
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480982
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 95d8f67dda949bf6e58bc43c55e00bb7a254fb7b3dfc7730fd4cc9f605fdabaf
Median time: 1719480981
Difficulty: 4.656542373906925e-10
Confirmations: 54
Chainwork: 000000000000000000000000000000000000000000000000000000000000117e
Bits: 207fffff