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: 2250
Hash: 414d0fddcda123007e3e18c17d4ebeba6c79c0e1c652056cb97902f8246308be
Previous block: 4f049345138110aaf5f7660c284f7f49cd51618c20ba753e58b7a2ab3484121b
Next block: 17a82520198fb67e90bb51d8fcd31dfd0b982768bf284e5a4a935d1d825f0775
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847262
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 04b45af82db64208e6c29343a272f3937f3126ee20ececa9e248e0f2a00f6aef
Median time: 1743847261
Difficulty: 4.656542373906925e-10
Confirmations: 393
Chainwork: 0000000000000000000000000000000000000000000000000000000000001196
Bits: 207fffff