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: 841
Hash: 445a63f4a595953330b1349c6cd1e95df1371570476f4a65383f931e9addb918
Previous block: 7b0113b0dbe849a7b413526bd2621a8a1c4fc941eb916776bc56ae19f7c182b2
Next block: 5e936aadf19f1cf1480470ac306e1817360099fe184052173e13c0676b07c717
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857809
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 781e07ba5d44d9a14ccb3805f38cd4586c4f5754f4fedccf5bed036a2fa506c9
Median time: 1707857808
Difficulty: 4.656542373906925e-10
Confirmations: 1403
Chainwork: 0000000000000000000000000000000000000000000000000000000000000694
Bits: 207fffff