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: 2318
Hash: 3013a98a6f8500eb687e745662a5445a84a53dd92a5e05cca7f079443c39156f
Previous block: 09e89f1bf004bda7c221578d2d74f13969383443f90ec56e9fc09294449fc62f
Next block: 27fa3b328988375da2d630cfd9579bb77bb117c5070e50141674ab61e57f7a50
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847273
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 41f0756b644346015b7bfc7b0009e453a9cad7f0c9d2afbb1c012765165914f1
Median time: 1743847272
Difficulty: 4.656542373906925e-10
Confirmations: 325
Chainwork: 000000000000000000000000000000000000000000000000000000000000121e
Bits: 207fffff