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: 1099
Hash: 13aaa7ab37bd006322ee9150b1865f8bf8fcb4ebd2ace93cf4e6b0a99da9f52e
Previous block: 762534804a6bc927f7cd6621dcb5fbdb92f1280ca22004875b7284d9ae0ac30e
Next block: 386967279850df9a203dee354cd222fff67da6a697d91e84dc0fd356a0531073
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857852
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 145b3ec7fcd623079eba275c0cd4e54130c83790fa48a30fe121e67367fe6c64
Median time: 1707857851
Difficulty: 4.656542373906925e-10
Confirmations: 1145
Chainwork: 0000000000000000000000000000000000000000000000000000000000000898
Bits: 207fffff