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: 1172
Hash: 754715814d6602f7a963dbef4cc98d3b1dd146f9f65c75e33ae189fbffe6b489
Previous block: 370e30b29ce6efad99df394762c120ca8f303ad8db4614161ff330463a0894c4
Next block: 5f161ddca4ee66ff483848e4654fe8019001de99e0d5ffee804f4ab8425161d9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857864
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6392e4ceb2d630b5e3c0cda1af54164e11d321d736050575bf8605ff1ab0c8ee
Median time: 1707857863
Difficulty: 4.656542373906925e-10
Confirmations: 1072
Chainwork: 000000000000000000000000000000000000000000000000000000000000092a
Bits: 207fffff