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: 794
Hash: 2c6fd61af3cd4ef690805a31e0a973ee4377fd675e28cfa9faaa57a3b01fb800
Previous block: 49d69db9cc4180ff3b44bf9520d2bbf34d1efaf52fb748e3c828766d3e45d57a
Next block: 50c7fc9d3c26a0dce6462c59391bd06025d93a238e96f401fe0611cd47a33241
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864276
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d47bae5ac762aa8567c8dfc0de4cabe01db375bde1a6e2be1e8af9e1d5a766ae
Median time: 1701864275
Difficulty: 4.656542373906925e-10
Confirmations: 1450
Chainwork: 0000000000000000000000000000000000000000000000000000000000000636
Bits: 207fffff