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: 98
Hash: 3ed4d63b5b07177d5a17b0586788c2faa5b407c00db5569c9cd072e8819fc130
Previous block: 536883e66f0e4bbd75248511426cb7503f1a77b7a485471e138fa23942d986ae
Next block: 0ff712e78b7e0c583883735352f9950c50bf063c261b22e01700b3ce4caeacb2
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597884
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 6b7c2fbc30e2b74571fb1770047de6e30abb21c10053099f2ad34cd3963c9382
Median time: 1701597883
Difficulty: 4.656542373906925e-10
Confirmations: 2146
Chainwork: 00000000000000000000000000000000000000000000000000000000000000c6
Bits: 207fffff