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: 1055
Hash: 5f17992b077bb9311501295cdcdc29fde3052c58afe3b8466d97980ef7eddd35
Previous block: 192304071ab804f8667b57a3733a6c54bcef6360719d84ea6c36ff2ffa415893
Next block: 79a358c3ceceef08d0f3a0f471d250440c3c02cfcb49e6f2a61c988b38a9bc79
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857844
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4c8b0e0d3b618045c86834a89547a60e0662cc6088807dda300985fa9464f1d8
Median time: 1707857843
Difficulty: 4.656542373906925e-10
Confirmations: 1189
Chainwork: 0000000000000000000000000000000000000000000000000000000000000840
Bits: 207fffff