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: 1287
Hash: 7985de73451053ccac94c1d09cc2425c5a14a01ee25b0ae43f40c25efedbb712
Previous block: 4fba0ebf6132905c0804ea01302438573dbc2edda2f94f0355acc06d8c3a1231
Next block: 259e3ff7eaa6883648f87609df8453c55b9f1609196506d8aaad70dc250b9ff5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697622
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 351f83b6195682382430401ee0dbf2e85f17fb0900bf0b50a21b55499abe2927
Median time: 1718697621
Difficulty: 4.656542373906925e-10
Confirmations: 957
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a10
Bits: 207fffff