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: 807
Hash: 390ed67520f94c2fc326bb5865062ba2a53dff6f5595e67a9fc818a2d30443b3
Previous block: 50a3aecb77334e47f8f7408fb7e189d2f1170d59822cd7359bf8875776d7a980
Next block: 0dce52b340df4bcde2c0fcccb84d358da266a24592c2326aa3c062f1162b3a67
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857803
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d9f8fa901f55a4744b614e2b780c507bb4167e5c2870083defdf076cca21752d
Median time: 1701864277
Difficulty: 4.656542373906925e-10
Confirmations: 1437
Chainwork: 0000000000000000000000000000000000000000000000000000000000000650
Bits: 207fffff