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: 2321
Hash: 184abbec0076455f6463e5ec3b0825c47898c5e5606dbe94ef0198f538df1768
Previous block: 4d517d64be66b025edb2273a4e3995d46dd965a8c7d73aafe5a49dfb2a2f4577
Next block: 533b421bf8e292b3276ecd8580ef5c6295170b60eb643526ae00be9a924cd880
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847273
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 460ac12727a495c3efa88556b8e4f4d8f0e5740e61ad0809bc747dcba032c7ad
Median time: 1743847273
Difficulty: 4.656542373906925e-10
Confirmations: 322
Chainwork: 0000000000000000000000000000000000000000000000000000000000001224
Bits: 207fffff