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: 756
Hash: 4ddf52e2aa93869a369b1d83bd6b767e9075e58ca9c3c3cb82bd11820e0119ca
Previous block: 0681fc6ecb9c3ee04f16d64ab1feba7050c17dcb2294610183e62c79bbe3ce37
Next block: 199042385e41279c04839eba56b981155ec9c76fd57d18a701b9baa3872a9e20
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864269
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5c58201746f335ea1608eae8e8dbeac9a178eb437501c7e63058a3575ab82632
Median time: 1701864269
Difficulty: 4.656542373906925e-10
Confirmations: 1488
Chainwork: 00000000000000000000000000000000000000000000000000000000000005ea
Bits: 207fffff