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: 1808
Hash: 46379c613b28adb0c5529d60164cd36c83703ee888bf92c98a1726a5c054abac
Previous block: 2d786cc27815a4e0f6231169f1693d2f6c59647ee114e1fa0d61d7368a6dbb19
Next block: 68791f3cafa49ee789c2d09bc018148f56f40445689564b992cd84130045bbe2
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159225
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c4f2fb6c34d96bc12bb67fe10a5f8c26b42f2b0b893f2a3aeaa8505909797576
Median time: 1719159224
Difficulty: 4.656542373906925e-10
Confirmations: 436
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e22
Bits: 207fffff