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: 938
Hash: 77b4fadcc15d647b9e6470193b762baa9b4884dfbc47e1ef66cb37b87f0d83b7
Previous block: 6be6100476de5c020c5276430264c298cee5ef5e70a5b713ade2e0208adbbaae
Next block: 14a7aaa8f537d95f10d32456bfce9831598a5a9d9987a59868522697756ac904
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857825
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 38758cb45426c928ae9cd934797ab5e616f5b4d796d395996bd642dbfe42d294
Median time: 1707857824
Difficulty: 4.656542373906925e-10
Confirmations: 1306
Chainwork: 0000000000000000000000000000000000000000000000000000000000000756
Bits: 207fffff