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: 2424
Hash: 158826563a39274fc61e156bdff5353569a628be172d3eae01527bcee8e76160
Previous block: 480cd43ffd81a2424158220e3d7ebb5003b0a5b773d9f47c51675b6da2859f68
Next block: 1466c6dfecaf7ee29a92cd120df6b4943531b88301f7da1a076ba90d01f28440
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847291
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 22b8c15bee19c4fb17d94b54453cdb0762c55491c4cc0e3f4d83eddccda6d07d
Median time: 1743847290
Difficulty: 4.656542373906925e-10
Confirmations: 219
Chainwork: 00000000000000000000000000000000000000000000000000000000000012f2
Bits: 207fffff