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: 2272
Hash: 1139300035f2a94fe3c3622e41c047e918eb3abbe397505da09e99dbe0c7931e
Previous block: 689fe4b84ee035144df809022b892bdd4e30e23e1eeda5203817af24814ab221
Next block: 5a1f39dbd6a8604249037fda1e1649cda80f704bdd500de09d6894b316a08a5a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847265
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: e17619d4acb6f4d14fa7b9f75faf275a5e64d0ab3df41ecf2efc297c196bd193
Median time: 1743847264
Difficulty: 4.656542373906925e-10
Confirmations: 371
Chainwork: 00000000000000000000000000000000000000000000000000000000000011c2
Bits: 207fffff