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: 1863
Hash: 6e4fd40327e8a50141327967cadf4ca44425f7157cbc931e4bd56e3423fadaf5
Previous block: 79fbe340c235e56916f3a579b968c45cc5d9e653ffb0c4ec62be46b55585b661
Next block: 6a02070d2c6ed5eb8b5d8c7f129a9a855405fe6e2f901d5bb537287862fc2d5c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159234
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 47e07da0949cfd3430f854680b9b332cab99ed2423dc2e08ccb267dcaf572f1f
Median time: 1719159233
Difficulty: 4.656542373906925e-10
Confirmations: 381
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e90
Bits: 207fffff