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: 993
Hash: 5788c5fd49bf6fdd246e8fe61a3d3c13bdbfbcf01acf2785d1ecf6584cc0fcf3
Previous block: 4665ad0f70e003760744e5bbe29a7bd711a686076c16ae1a034c8f77a8543203
Next block: 3ef6d73add7775c322ca1827a7456f853031cb4a5387836b4cab32bfa6c1f2f7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857834
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 67572f71a0ecadf7ad9d48fbeaa3a5f572cbe0621d842f750165b245dd000c11
Median time: 1707857833
Difficulty: 4.656542373906925e-10
Confirmations: 1251
Chainwork: 00000000000000000000000000000000000000000000000000000000000007c4
Bits: 207fffff