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: 2087
Hash: 13b8169dcb0c27c3493f3435e611310887f1d03131ebc2d69fe2e8c255fea6ca
Previous block: 1e72436916cba4e02190f93c894bcd01a362f0c1c859819c688b76697587afc6
Next block: 0ec9a4ea0358a0ea9e23fa06853406202f84878b5e2a2cea34c247ed85aa195d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964784
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 45e5d337e040adcd8e71c6be2dbdd90cab51499a8c0c1fccdc5cfd225ea8cd0a
Median time: 1728964784
Difficulty: 4.656542373906925e-10
Confirmations: 157
Chainwork: 0000000000000000000000000000000000000000000000000000000000001050
Bits: 207fffff