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: 924
Hash: 3704ba2a8b00750fa9d97bddbb2a15b6c447fc7bca74b856fccc8372d3ba05d7
Previous block: 0fbd8cdc92d92db597d399e4b715b78c3746e1c9c2c45cb0c53dd1908c77b7dd
Next block: 36c231fb7d91910d0a51045fc3d0629658e1179facfd4909d033c0e64cef0f9c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857822
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: cd4b523d40fc2db74962149fe6db093d3be3a229864d9bcbb258c1f1c6314fee
Median time: 1707857822
Difficulty: 4.656542373906925e-10
Confirmations: 1320
Chainwork: 000000000000000000000000000000000000000000000000000000000000073a
Bits: 207fffff