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: 552
Hash: 46cab00c0abfa1c76dda82ccaf05d93be27f870dee23eae73ed338ee521e80d6
Previous block: 56b9e0cacb2753199dfaedd8c64db6dfabc5b363386291da40508db15963d056
Next block: 5276a0afdfb0114e61bd5ff471953107580eb26082a78bb7e1068f45dcffe77d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864235
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c98f051eedfc8f54b1d5005b34070365280db96cac5711c313caabf8974c138a
Median time: 1701864235
Difficulty: 4.656542373906925e-10
Confirmations: 1692
Chainwork: 0000000000000000000000000000000000000000000000000000000000000452
Bits: 207fffff