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: 755
Hash: 0681fc6ecb9c3ee04f16d64ab1feba7050c17dcb2294610183e62c79bbe3ce37
Previous block: 1f014f1d53bc1ad156e9aa4c1c680177381b594d72661d5e777499ef5c6ad5aa
Next block: 4ddf52e2aa93869a369b1d83bd6b767e9075e58ca9c3c3cb82bd11820e0119ca
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864269
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 87b6ce31c9e9ec277f39d5a2c333f661e8a9ca67b60cafdf8aa1d7a4d967fa18
Median time: 1701864268
Difficulty: 4.656542373906925e-10
Confirmations: 1489
Chainwork: 00000000000000000000000000000000000000000000000000000000000005e8
Bits: 207fffff