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: 1783
Hash: 2e5847b179d5640e383ecb385acd7a37768bce1a45b7890f4810a99bc8b38f71
Previous block: 12b270da3770795fbb4b96a5a0ef0ee6bf7ec8fa809469fa10cb7527410e8ad6
Next block: 12acc700eacbb4c3ab24c2be816354f879be126204401f1531b37501ed909a8d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159220
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: f79dd48f790cea328eb3a743d3f504545e0453b3bb008fe9f4c1f6b15a20f2ca
Median time: 1719159220
Difficulty: 4.656542373906925e-10
Confirmations: 461
Chainwork: 0000000000000000000000000000000000000000000000000000000000000df0
Bits: 207fffff