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: 2319
Hash: 27fa3b328988375da2d630cfd9579bb77bb117c5070e50141674ab61e57f7a50
Previous block: 3013a98a6f8500eb687e745662a5445a84a53dd92a5e05cca7f079443c39156f
Next block: 4d517d64be66b025edb2273a4e3995d46dd965a8c7d73aafe5a49dfb2a2f4577
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847273
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 1829202702206f7b03beed5e39e2d54381fa1396443942a193e6c091de4145e0
Median time: 1743847272
Difficulty: 4.656542373906925e-10
Confirmations: 324
Chainwork: 0000000000000000000000000000000000000000000000000000000000001220
Bits: 207fffff