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: 849
Hash: 3b0c0702a7d485ce1817a74657cd15093a9be602c8bb86b584b372dbe09cb1ce
Previous block: 474cc0fd8f5745639113c2cd69f29f7f4e83fdc4c10e288a1a360936c464405b
Next block: 24bbb0657459b2eb9db7f54f7fb1d2ad4d7ff2c1b07cdfb17ea1d365c66eebc9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857810
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4bbfe20566561834462d66dfcb573ff3208fe6ad8f2c4cc915774d6987fd1248
Median time: 1707857809
Difficulty: 4.656542373906925e-10
Confirmations: 1395
Chainwork: 00000000000000000000000000000000000000000000000000000000000006a4
Bits: 207fffff