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: 1996
Hash: 0ec6123b32a3e1df418504f5c5a108812809af88787b1a26e0912cd262fba9a7
Previous block: 70e07ccf6b9a2b72a95b6fc00283bdda5e2f53d1de98935d47b1c368bffd8aad
Next block: 74060852bd37adba5f92ba59835e95bf19c7eb15760e6d76ea96e20117b445e9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159256
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: ff7df50934e69c196fb70ab94c053335a42df01388bc6f9a80814a51565490a4
Median time: 1719159255
Difficulty: 4.656542373906925e-10
Confirmations: 248
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f9a
Bits: 207fffff