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: 899
Hash: 2117cea5ec5948c2fcdc93f7015cb59e92bc168f4796dc5dca24185b14bad252
Previous block: 1bf5776bba36e316d77df9817c0bd8976b5c87e235fb66a295753215e322aa0c
Next block: 7da609a55bab204c5f1ac1a995bea4ec54da363bad99d85769cf78c70274e85e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857818
Stripped size: 218
Size: 254
Nonce: 7
Merkle root: d2d3020c98224e96f1b9fb577287b107f3eef0f7461e2f69a31f17dbe58eea0d
Median time: 1707857817
Difficulty: 4.656542373906925e-10
Confirmations: 1345
Chainwork: 0000000000000000000000000000000000000000000000000000000000000708
Bits: 207fffff