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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2598
Hash: 1b7de87b5f9100b456e86749a9a4d4356efa08382124f2275a64175d323df5ea
Previous block: 06786ac1cf63f5a85c7bf3bd427d56df7efee0e4d66232345e2719a5cdb57a48
Next block: 711eac439dbb3ee1193f0f9655237583f0076d9e4f77f22bbf1ad3ee08bbae58
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847320
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f3b67c7761d8a7c696297f97722767c11f8fe28931df613c34def73f7ef8a037
Median time: 1743847319
Difficulty: 4.656542373906925e-10
Confirmations: 45
Chainwork: 000000000000000000000000000000000000000000000000000000000000144e
Bits: 207fffff