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: 2280
Hash: 16f82ed4c93215e46b30462c732dfa41959a6b704535855f7cf939af0a3e73de
Previous block: 575366fd94571d46cec72440bec6a30c4d753fe447612c97d049fa1a4d0ad9fc
Next block: 5db90ba16e253239b239f2a098e966e86e1525889846e7ce5a89349442583970
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480989
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 5765d5a790c8b8ddb8734f9653c16cabeef9f6fea3939c8182b56c5179d895cf
Median time: 1719480988
Difficulty: 4.656542373906925e-10
Confirmations: 12
Chainwork: 00000000000000000000000000000000000000000000000000000000000011d2
Bits: 207fffff