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: 2281
Hash: 5db90ba16e253239b239f2a098e966e86e1525889846e7ce5a89349442583970
Previous block: 16f82ed4c93215e46b30462c732dfa41959a6b704535855f7cf939af0a3e73de
Next block: 2f67f792796dbe102caeb0a1ffe593d8d3b383b886d04b516f9d9c0d10aa0ba2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480989
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b8137e5a35ddf9c8482cd6f745d5029b778ae9eee5e8ba8e894eb15b3715f618
Median time: 1719480989
Difficulty: 4.656542373906925e-10
Confirmations: 11
Chainwork: 00000000000000000000000000000000000000000000000000000000000011d4
Bits: 207fffff