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: 94
Hash: 5b1b13a149854cd3a70f688af3f9b1a39185097fd4470dca131b431bc4c0047d
Previous block: 711713b03e68d7bccd016a9419d06ab627751bafaee0edd70f900a2d4b54dfcd
Next block: 60ec9ecc1512d3646ec174df474e2e3c85520586c6170d0ab2790713d5b15f17
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597883
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 72a47498016ae2dfd910379b976ccc60c7f9737708c898c57e5fb85b3d0c57c4
Median time: 1701597882
Difficulty: 4.656542373906925e-10
Confirmations: 2150
Chainwork: 00000000000000000000000000000000000000000000000000000000000000be
Bits: 207fffff