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: 2535
Hash: 22f700265fd094bf0c24ec20f7ad5c615905c4df500e749e5fdd6956f8be354f
Previous block: 18d1db2a21ceec8a3c766958a6d6c6a66a795bf525e68b56fa26a52ad0d66a7e
Next block: 48289f3283a35a9c758bf06565b805eef235820d3928de6be94f02a95a4a5e5c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847309
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 79e2ac266c24b6ade610e289a9bf45e372c6db05cb2a70fd1c7a2bca82ae4f8f
Median time: 1743847308
Difficulty: 4.656542373906925e-10
Confirmations: 108
Chainwork: 00000000000000000000000000000000000000000000000000000000000013d0
Bits: 207fffff