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: 1224
Hash: 50966553d091b53034e21abcfd2363b6c2d86873f870ecf3f5bee979f11fabcc
Previous block: 0a044d077f2132ebbf79ebafd6525d78206cf1ad206ebe82c0d6faec3afa0fb1
Next block: 3e8a0efe73b81585dc44879bb243a666e2ee3b1e85067a6fd8b984522037692d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697611
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 888accc5a1700749a18f3d5d455fac06a8a166353de55eeace79e0ee6af14d78
Median time: 1718697611
Difficulty: 4.656542373906925e-10
Confirmations: 1020
Chainwork: 0000000000000000000000000000000000000000000000000000000000000992
Bits: 207fffff