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: 2473
Hash: 12e471637eed9249040fa035b66f34473dde4acfb195dda9bd687dc1fc33a1d5
Previous block: 36a36757f3977914a95e68410d70a3943ffa3700637c7f1bdedc0ec9cac2db80
Next block: 6256d069fd26bbd75a23c36198d3f886c0290f79c78337264fb460a9760eb19f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847299
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: b53024428ea14523cdf76accf47b8c7b49c5839ca2c548330400abb5e700969f
Median time: 1743847298
Difficulty: 4.656542373906925e-10
Confirmations: 170
Chainwork: 0000000000000000000000000000000000000000000000000000000000001354
Bits: 207fffff