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: 379
Hash: 6a4f877fd2169dad81c4536d9f15105c8521532e298763f7b90627b5bd93ef9d
Previous block: 0b7b8a8a98afecdccd047f86178ddf91af433536dcd4878f8423f9517e4b5b6d
Next block: 40a596e81c2ca50c0e53097e518f86eb1fef4740c1b8cf390eb46d918c0a2019
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597930
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 6824281f2ee661b0a43f91848ee8de97502cfaff14533ba0459d9fec555cdb19
Median time: 1701597930
Difficulty: 4.656542373906925e-10
Confirmations: 1865
Chainwork: 00000000000000000000000000000000000000000000000000000000000002f8
Bits: 207fffff