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: 1214
Hash: 2819381aaa71ccce91dab552821d6ee42366638a3ba9941ca16abb6c515b83ee
Previous block: 42e62ab354076172e1dc1e07712f41c6c6fe59722d5c029382f28c893f94fe02
Next block: 0d28787edbe6d8db7859fcfaa24692e818f292a04857bbcf0088bbb0855c66ce
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697610
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5cdad09c9f0ae603bb3524dff34ae50b23704fd6d202d1360224c4483bbcca5c
Median time: 1718697609
Difficulty: 4.656542373906925e-10
Confirmations: 1030
Chainwork: 000000000000000000000000000000000000000000000000000000000000097e
Bits: 207fffff