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: 1016
Hash: 70a052192d93ef4dc1f8fe99d896eedcc677661cac639a49844aafaff47c7a12
Previous block: 3a73e7361cf9534f8dbfdc27465ba799dc76429819f2ee53f36c6e894f1b2c20
Next block: 1af0e5db1c54add5305aecff33422625d047fec2e42ae8691b117441b1ddf956
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857838
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: d2faa1ffa3fa65fbedbcd01f37569f8362fc20a988d387092f84f5cdd838b849
Median time: 1707857837
Difficulty: 4.656542373906925e-10
Confirmations: 1228
Chainwork: 00000000000000000000000000000000000000000000000000000000000007f2
Bits: 207fffff