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: 2038
Hash: 79b229ca43ad27fd47ca3d10d040fcb862cabc95db592b69b738bd3eda8b937e
Previous block: 54c6f7b10bbf2754d4061b2aece89d23d46427ea09d97a76ee99f51af348fd6e
Next block: 4a58af52c4aa2ccfb66d6514380816aa27a120b68079725471ebc523567557cf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964776
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 1398e47acdbcbf2e4d20b59f9a15f17ad0015d1152f48c743fb497bd4ee1c6c2
Median time: 1728964775
Difficulty: 4.656542373906925e-10
Confirmations: 206
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fee
Bits: 207fffff