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: 2564
Hash: 7703de48ccb3fa0c0d7a2991c882c57b1527c16f1b38cbfe716cce9c88127d7c
Previous block: 51495603334d44ef69c7252cfe5132bb1dddacd4c11361fa87c7b5e5ebceaee9
Next block: 3384186b6ce1fd9bba42b2e3dc093482a759e1ddad47562b6e7ecf649b1751b3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847314
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 2bb97bc2f0c68af723270ebe338627fd8e3e9a1d65d6226728dab10daf5d7347
Median time: 1743847313
Difficulty: 4.656542373906925e-10
Confirmations: 79
Chainwork: 000000000000000000000000000000000000000000000000000000000000140a
Bits: 207fffff