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: 2218
Hash: 3693ea45f031fc6a6096e420f4c6672c7a009b557abce45a212199787aa8ae65
Previous block: 08e6adb32dd1c98e302f049f1fa7dcfce6d365a53167ec377822426e10d84cbf
Next block: 4a74022ca078f98e29770d50c0167acf4f56df254f32d57aa5fdaae1b8f07b0d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964806
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 0183788144743357497c68519792997396d314d8a0f9e899eb029caca9b42706
Median time: 1728964805
Difficulty: 4.656542373906925e-10
Confirmations: 26
Chainwork: 0000000000000000000000000000000000000000000000000000000000001156
Bits: 207fffff