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: 1234
Hash: 0f78142d2fd9dd4ef58646701971a916c2f5a6fd0211a5cd3c0e3f1b2fdf43a9
Previous block: 39cc560e290e0ee1f85b7549a02121d2571f7c46220d64316dc80dd7c1817e26
Next block: 22336f4036fb511d6d8eb8b464460fe26f3b33a74195482214ad9bdc4e677ac6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697613
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 63d2da4e624004cd693c97d7c588a73ead685925ae7ab47d5ad352942aa76acf
Median time: 1718697612
Difficulty: 4.656542373906925e-10
Confirmations: 1010
Chainwork: 00000000000000000000000000000000000000000000000000000000000009a6
Bits: 207fffff