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: 2231
Hash: 5a98f212d3d467503a8c69c997d368bf19c3526676bcfd23ec83a7a2016f01a3
Previous block: 1c2550f0c82d9aa28e0bb47df2ac27dfd95dca3af05f35c768944f6bc79732f4
Next block: 6723936db4dc1ef7b4d2c53da10ff8ce4aed6dbac373a39438d0379b6502a6dc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480981
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 884374bdbc12ec8a4c1fb813d26d5e97a09d01efa7f427aa4f889a4cc238c070
Median time: 1719480980
Difficulty: 4.656542373906925e-10
Confirmations: 61
Chainwork: 0000000000000000000000000000000000000000000000000000000000001170
Bits: 207fffff