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: 828
Hash: 2e45a156cfb4e02d6df78f2f4e9438ade2baea38d25eded8e16ede51d671415b
Previous block: 592902a6c7078013e134113da567ff887885e7cb200bbc8aca304076e62053b4
Next block: 15b20ca19e7822a84d19e147b704ae7e54e2e86d5eccfaf092d44a1286cb6282
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857806
Stripped size: 218
Size: 254
Nonce: 8
Merkle root: 2f7d15d60f3c82e2e1e89cd641bfbde00b5fb2ce4036b30073daca277b64d94b
Median time: 1707857806
Difficulty: 4.656542373906925e-10
Confirmations: 1416
Chainwork: 000000000000000000000000000000000000000000000000000000000000067a
Bits: 207fffff