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: 2264
Hash: 1816e119385737c71c52749bedf5a94651a97ad9b1e1de8d94a427730ecd83ce
Previous block: 0fffe4301b1c9fcf1728a159c012e85ce7176a232366fc6566704f07b5d9a50a
Next block: 3ae0285909a057ffcd4eb246ab7a99f94e01a22f053116124d807c9aa928b87c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480987
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 25e2d2238c21583e462cbf5311560627b44f370cd67fe9f8f812899bca15c357
Median time: 1719480986
Difficulty: 4.656542373906925e-10
Confirmations: 28
Chainwork: 00000000000000000000000000000000000000000000000000000000000011b2
Bits: 207fffff