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. mgqFp9Dhy

Height: 2183
Hash: 213e736583a5c6b75a3c68c3da9430e4449d360ffd32be70d0d5e076079ce555
Previous block: 09c71e969ec33a4ac23aefe9130929316a77153ff6c00f14c01fbe8cffbcae2a
Next block: 6b127b8bad1319b5fc286e41c81107101194b9e0ccda57870b05021922cb69bd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964800
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 969bde514347cbcf2da0c1a9b65c245230aebfc3a5d9e8e15e80409691984130
Median time: 1728964800
Difficulty: 4.656542373906925e-10
Confirmations: 61
Chainwork: 0000000000000000000000000000000000000000000000000000000000001110
Bits: 207fffff