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: 1707
Hash: 19706b1d1d709dec06681062c9a1d9386e5c4c129ceb73a96ee90e63e4b75258
Previous block: 13c3576d4de0b9f06057124ab65f860ec39884cfe93d344011b7de275f4efd8a
Next block: 1b69a1441f867319b3382c50b8020811628e9008066be0fec0b7e7b9631655c0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159208
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 63482d6d88747d25a340461e91ff1f331fb7b2fa55fc0a6c86056d174579dba0
Median time: 1719159207
Difficulty: 4.656542373906925e-10
Confirmations: 537
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d58
Bits: 207fffff