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: 2208
Hash: 527a9dbfc55bd6ea15b46bd00b13ad645e9823de849510d1f75ea11e24db77a2
Previous block: 610c39ebdb2d359beb54173d3a517688cf6b60f6067ae057b691374f21d09ffb
Next block: 64b6a0744a65c597a9d0e4baa492ac8885c2e29a54f7c6609e1583d28fbae07a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480977
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9c3501224f4af035b96eb838c72949f13b2a03c81cc96cd63356d9dd78365db1
Median time: 1719480976
Difficulty: 4.656542373906925e-10
Confirmations: 84
Chainwork: 0000000000000000000000000000000000000000000000000000000000001142
Bits: 207fffff