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: 2265
Hash: 3ae0285909a057ffcd4eb246ab7a99f94e01a22f053116124d807c9aa928b87c
Previous block: 1816e119385737c71c52749bedf5a94651a97ad9b1e1de8d94a427730ecd83ce
Next block: 4cb4d7926af4307b3bba9a1af4561b72d01067d21ed6a3e21a57f0638d638773
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480987
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: fba6eafb953111234e066fac8b62ec0a0d905ddf39af6874e8d06477ebaf26d6
Median time: 1719480986
Difficulty: 4.656542373906925e-10
Confirmations: 27
Chainwork: 00000000000000000000000000000000000000000000000000000000000011b4
Bits: 207fffff