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: 79
Hash: 5e0de29aa238429099ef53655fc3c92ff6252b0733108d08cda0718612f96460
Previous block: 02fb45d783449696d31065c1c2eeaff957aff7f726077c565c2b9f82091bce56
Next block: 42a5e29b507a8ae90840a75d406f1d086d45efe611756f52d1576439085a11ed
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597880
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 9b3b108aeba4eab49d665742485bfb4ba1ba46815fa63b3646e5ad78764b5dc4
Median time: 1701597880
Difficulty: 4.656542373906925e-10
Confirmations: 2165
Chainwork: 00000000000000000000000000000000000000000000000000000000000000a0
Bits: 207fffff