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: 1368
Hash: 20530e69a1d89873fc1d1d02550efda5588570cc70eff9cb1e3685046080f07a
Previous block: 7d310b79751cb797b3304da607d9eeffa911c10ba74936f2f7ca6707d6ceb093
Next block: 5c366b2a7384ea062e0444599a0ff4049b87179d4b9ce460c069b16cb7f90592
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697635
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 2ede1951acc5fea9fc710a2c36b5c137ff48f5d3e72900fa473176875c215cc2
Median time: 1718697635
Difficulty: 4.656542373906925e-10
Confirmations: 876
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ab2
Bits: 207fffff