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. mxMfLjAez

Height: 2086
Hash: 1e72436916cba4e02190f93c894bcd01a362f0c1c859819c688b76697587afc6
Previous block: 396e4cb2b009ba5e91a89be85b17f7cc76ff332107d84e27807b05b327ba229c
Next block: 13b8169dcb0c27c3493f3435e611310887f1d03131ebc2d69fe2e8c255fea6ca
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964784
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 5ef95273e3bdcfca54f89331801759281c599e852a8779bb689a3dde6a13a09a
Median time: 1728964783
Difficulty: 4.656542373906925e-10
Confirmations: 158
Chainwork: 000000000000000000000000000000000000000000000000000000000000104e
Bits: 207fffff