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: 2196
Hash: 3227e1b6aae18e23cfa9c9f2772a0307b61ff68b043654b646f37ce1b3f674fa
Previous block: 3fc6485aa6a057c76e8c70754bbcfcea2aed052971e7ae795ecf39c440348355
Next block: 286eb2eef3bd4445961770b1098aee9b31c0326622174fb368503fac6ca8eccd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964803
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 23615cf1c1879786b8ff096fc3c674e08988047613cca63245affda29cb04de1
Median time: 1728964802
Difficulty: 4.656542373906925e-10
Confirmations: 48
Chainwork: 000000000000000000000000000000000000000000000000000000000000112a
Bits: 207fffff