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: 2355
Hash: 04fb2a6720d8a8cb093ccad34219d3d36bd4edb8b630fa6a2df79a35a5a81ccc
Previous block: 51a9dd4d7b6d8f3ff42f6c4d901906dd6ca15a135deea81a3b3bde57c1208b90
Next block: 320791b57ae4a605e6c0940a05313b4bfeba3b47b8696a6c8b20a250dc8faf7d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847279
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 1269aad8497b06f72b2101da75d6b04b67e380157bd29260c1ec4831e4b1baaf
Median time: 1743847278
Difficulty: 4.656542373906925e-10
Confirmations: 288
Chainwork: 0000000000000000000000000000000000000000000000000000000000001268
Bits: 207fffff