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: 246
Hash: 427074fb6ccdf91eed70d5a41c8660a2614facb34842ab2cefde2f7c4152581f
Previous block: 0c77b7f8c3d8b4978bc7795b8482e2ee83d8e8646bd940a7092f390a0caeac46
Next block: 41b15befe84b7638c3f3923cc6a06e14b589e4f0aace6bd5591237c2bd1c35d8
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597908
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: e0ba4b5bf445631fc52a667349cbbb63ac31b367c37a19fbe7e904488ccc16ed
Median time: 1701597907
Difficulty: 4.656542373906925e-10
Confirmations: 1998
Chainwork: 00000000000000000000000000000000000000000000000000000000000001ee
Bits: 207fffff