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: 241
Hash: 3023c5bff625b0e2f0c9bcf90258da845bcf1b09f40bd8f73b150482299e7de9
Previous block: 607b6f6d69ebecd364b5806b586484ee65d0c649942f18ff2e3f3e1fad894eba
Next block: 6df6015e991d6ab2a56445a3782639f1c2d32f882d0baf6cb5f4da564826c736
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597907
Stripped size: 218
Size: 218
Nonce: 7
Merkle root: 628c3840f489a51665d7c29bd24a718d2a660cdd838a6be820fe86b9adf4e7a7
Median time: 1701597907
Difficulty: 4.656542373906925e-10
Confirmations: 2003
Chainwork: 00000000000000000000000000000000000000000000000000000000000001e4
Bits: 207fffff