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: 2195
Hash: 3fc6485aa6a057c76e8c70754bbcfcea2aed052971e7ae795ecf39c440348355
Previous block: 134518b5efa5991fe48b91329f7e30f9298735f7cae913384a93f7082251c250
Next block: 3227e1b6aae18e23cfa9c9f2772a0307b61ff68b043654b646f37ce1b3f674fa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964802
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d4160d0e6624c3a0dd6562f5edbcca263264c488ca40bf7623aaead9f076da82
Median time: 1728964802
Difficulty: 4.656542373906925e-10
Confirmations: 49
Chainwork: 0000000000000000000000000000000000000000000000000000000000001128
Bits: 207fffff