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: 2320
Hash: 4d517d64be66b025edb2273a4e3995d46dd965a8c7d73aafe5a49dfb2a2f4577
Previous block: 27fa3b328988375da2d630cfd9579bb77bb117c5070e50141674ab61e57f7a50
Next block: 184abbec0076455f6463e5ec3b0825c47898c5e5606dbe94ef0198f538df1768
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847273
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: cb1e89feb7f3556ab0ae1c6bdf99827272d3294a3b213c89fc63f3b206f855b6
Median time: 1743847272
Difficulty: 4.656542373906925e-10
Confirmations: 323
Chainwork: 0000000000000000000000000000000000000000000000000000000000001222
Bits: 207fffff