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: 1136
Hash: 60290643c6ec09454a1a644d6af7911362055ec18cd1b1fd1f8d38f1b0ff60c3
Previous block: 570cd214a619b04eb3c070548c80655d4b6717d2d4f3aff83ebf2b2ea8eebb6b
Next block: 621ecec128826fd59f40e2b2e766760b8bca618e9c23c090254cbf37c3287cfa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857858
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: e5c18f351e2747d2bf73b46cd937eea0e442cd3bf770d3a484fb2590e518f07f
Median time: 1707857857
Difficulty: 4.656542373906925e-10
Confirmations: 1108
Chainwork: 00000000000000000000000000000000000000000000000000000000000008e2
Bits: 207fffff