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: 1366
Hash: 347c36aa241852f3e864170917a305ef2e8adcaf459fde820758981214a62627
Previous block: 0d696b7441480dd88135be98ef2145a072b0f5f071ff50ed2c51f860651b5918
Next block: 7d310b79751cb797b3304da607d9eeffa911c10ba74936f2f7ca6707d6ceb093
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697635
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 2b0b5b9f0ee37ceb89917e2476a647fe7c058f09eb3524863d4da3e035b9673f
Median time: 1718697634
Difficulty: 4.656542373906925e-10
Confirmations: 878
Chainwork: 0000000000000000000000000000000000000000000000000000000000000aae
Bits: 207fffff