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. mkrgsKuFE

Height: 1563
Hash: 7c0677383a503c159629d0d61353734a42e37bb29280babae32f65fbceb338a2
Previous block: 673131224af1af9353fa5906f340025ff1af98ff8a63f6bdf907a7a8b5777af0
Next block: 427d34527224e7be5c236068c4f227015ea433c6da0e1a08f1b687d31f0108c5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932130
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e146889f852332f43965d88f250ad20cf5ed09a6fce3be5f130ca366dfcc3623
Median time: 1708932129
Difficulty: 4.656542373906925e-10
Confirmations: 46
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c38
Bits: 207fffff