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: 2534
Hash: 18d1db2a21ceec8a3c766958a6d6c6a66a795bf525e68b56fa26a52ad0d66a7e
Previous block: 2b36f1d78dd8682a71920685595443b97e23e6c774827b2f43223fa372b594ef
Next block: 22f700265fd094bf0c24ec20f7ad5c615905c4df500e749e5fdd6956f8be354f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847309
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 2de03160e6fe00040595776f1440c0b69a53bac4d7a1dd1af98966399ae9a635
Median time: 1743847308
Difficulty: 4.656542373906925e-10
Confirmations: 109
Chainwork: 00000000000000000000000000000000000000000000000000000000000013ce
Bits: 207fffff