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: 2492
Hash: 2edf2f9d64be1f3f6d381fc0e9da76559a189b0a5635db503df2d01df7c2b8ef
Previous block: 414c36cf41cb3ba4056fb47574231282ab307fc18ae2cf73902ad911d5fa805f
Next block: 36459b5a7b89bb1c6731ace0a76814ca46c48860572565824f527587fc57dbb2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847302
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 4ae7eb8e9e5724259351889f2ece0256795f13488a7fbfb1a9ca40cd2cee5c92
Median time: 1743847301
Difficulty: 4.656542373906925e-10
Confirmations: 151
Chainwork: 000000000000000000000000000000000000000000000000000000000000137a
Bits: 207fffff