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: 2597
Hash: 06786ac1cf63f5a85c7bf3bd427d56df7efee0e4d66232345e2719a5cdb57a48
Previous block: 3497ea4b2a17ebc18b3494db4a1051cd4bb67d20a8ab115f2834fd0986b7dbe7
Next block: 1b7de87b5f9100b456e86749a9a4d4356efa08382124f2275a64175d323df5ea
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847319
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e808ac2a1a59782f0b7e748e8028bee4fff1a593513f41db43c9fbc2d237eacd
Median time: 1743847319
Difficulty: 4.656542373906925e-10
Confirmations: 46
Chainwork: 000000000000000000000000000000000000000000000000000000000000144c
Bits: 207fffff