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: 1089
Hash: 492d10dfa3920fbd5e7114ed704351f16758c37d9711a009578e587a4bc85c59
Previous block: 7c138382f3796ddfb842ca63844e72a1b848a13cb6e41ca4e2bfa41a69f3a2b2
Next block: 79889b9f66f6ff57b2f7794a010bab58a1cdc5c7b7075c360a69facf8a930388
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857850
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a39e90f64f4a3d7bc5f8d5bc2b348cb505e1a8dc528112c3f7ccb42b2be64684
Median time: 1707857849
Difficulty: 4.656542373906925e-10
Confirmations: 1155
Chainwork: 0000000000000000000000000000000000000000000000000000000000000884
Bits: 207fffff