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: 1784
Hash: 12acc700eacbb4c3ab24c2be816354f879be126204401f1531b37501ed909a8d
Previous block: 2e5847b179d5640e383ecb385acd7a37768bce1a45b7890f4810a99bc8b38f71
Next block: 6db6b1047d92c9717be2dc339bf9ba0a976b4b4494632f7952ec02fd4237868c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159221
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 1da1b676ea749d93af4e6e6b830897bfc6d85574cc65558dd64018240110a644
Median time: 1719159220
Difficulty: 4.656542373906925e-10
Confirmations: 460
Chainwork: 0000000000000000000000000000000000000000000000000000000000000df2
Bits: 207fffff