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: 1417
Hash: 4ac341d5134b219530657d047bcaa7373013efd9828e952350643d91701cb9a8
Previous block: 09fdda112126b90d75b42b3109b450b896088ef3f5cd066323e9dbdbf6a560db
Next block: 78b6ca759a517e97f673b1e06365c35054e632e40c0893d71548c0af9cef201c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697644
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 991d27d60f4dfc5ebae599cb05898235caa210a05cbe675f3065cdd0781eeae6
Median time: 1718697643
Difficulty: 4.656542373906925e-10
Confirmations: 827
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b14
Bits: 207fffff