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: 2249
Hash: 4f049345138110aaf5f7660c284f7f49cd51618c20ba753e58b7a2ab3484121b
Previous block: 3c41f821fe08d85c1a4e5297e87dc4c713d6f088712ec4e8a098e74c2589ba96
Next block: 414d0fddcda123007e3e18c17d4ebeba6c79c0e1c652056cb97902f8246308be
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847261
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: c1063463d8309c52425acb5873ee2b9d06b844f967f2b084ac2b4d95ad62822e
Median time: 1743847261
Difficulty: 4.656542373906925e-10
Confirmations: 394
Chainwork: 0000000000000000000000000000000000000000000000000000000000001194
Bits: 207fffff