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. mgqFp9Dhy

Height: 2194
Hash: 134518b5efa5991fe48b91329f7e30f9298735f7cae913384a93f7082251c250
Previous block: 1e5533bef1de0722d9096f1719887704fb3669fd2278e30db30caa0a079eddff
Next block: 3fc6485aa6a057c76e8c70754bbcfcea2aed052971e7ae795ecf39c440348355
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964802
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 95bd717c6c9b8faf50a78abfa50ef435ca36e98bbfc08ccd744539619209afe0
Median time: 1728964801
Difficulty: 4.656542373906925e-10
Confirmations: 50
Chainwork: 0000000000000000000000000000000000000000000000000000000000001126
Bits: 207fffff