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: 842
Hash: 5e936aadf19f1cf1480470ac306e1817360099fe184052173e13c0676b07c717
Previous block: 445a63f4a595953330b1349c6cd1e95df1371570476f4a65383f931e9addb918
Next block: 3eb7624bb5c9a5ade7414850327ce5df8ec91783dfe3503f85f7d066b1e64ef5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857809
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: d803aee6a05b163148b6d1c86e41e37a5c1c7a5241ea7690b4c00ee540cbf6a8
Median time: 1707857808
Difficulty: 4.656542373906925e-10
Confirmations: 1402
Chainwork: 0000000000000000000000000000000000000000000000000000000000000696
Bits: 207fffff