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: 298
Hash: 6be8e8bacd12e3aae6d9868924e18df461bbdc397edd9fbeb53233bf2dda0212
Previous block: 74e52124f2fdbc9f03f4017d01a033ba8761e14995c667b52ead3c85b8482acb
Next block: 3f67ef25bbc30170741f090d530b39a9a84e7224615008de4f41e57705e6a225
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597917
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: 2bd1e1c0398463dad3f72942bbf139458bbb7bc7298f01b3365cd5d5c080e52b
Median time: 1701597916
Difficulty: 4.656542373906925e-10
Confirmations: 1946
Chainwork: 0000000000000000000000000000000000000000000000000000000000000256
Bits: 207fffff