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: 2263
Hash: 0fffe4301b1c9fcf1728a159c012e85ce7176a232366fc6566704f07b5d9a50a
Previous block: 1d82044759a8918519e564c41193f4772ad7dd0f1946404a8133573fad641ae6
Next block: 1816e119385737c71c52749bedf5a94651a97ad9b1e1de8d94a427730ecd83ce
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480986
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 82d94eb51f45f98757ffee33311ac5f22dde4721c40f3595eac533d95b1e8572
Median time: 1719480986
Difficulty: 4.656542373906925e-10
Confirmations: 29
Chainwork: 00000000000000000000000000000000000000000000000000000000000011b0
Bits: 207fffff