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: 2412
Hash: 1e401fd11a4d1d79669c9a25d9c2fa45bfb7d810f860a2c11274f34ae4075d76
Previous block: 67fbedfcdd6799acc3cb6b5cec858caabdc703f3be524843fe14858ea6171ca1
Next block: 72d5a3643f58903de2469f61c05bdb2404488f087384e6043b640f0509284435
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847289
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 39b2afc9dc56411f123bcd15693122d84fa27f0c8dd4e4f19d167938972cb70c
Median time: 1743847288
Difficulty: 4.656542373906925e-10
Confirmations: 231
Chainwork: 00000000000000000000000000000000000000000000000000000000000012da
Bits: 207fffff