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: 762
Hash: 4ac6e2a078eb6326c7e5f9cc3debdab925c7ab800d2af585b5deb17dc7297b3e
Previous block: 1faa4661e99992ba577bc6bca661887761f7194bd54ce633f3de0fffd3f69392
Next block: 79ad17acb8cab3d5d40278da632edae5c932ded797d47a2ecc36f9e1533add29
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864270
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bf3c8ab2b4c37f64bd354dc3bf27281544c71362ae68526d7fd0d18e7f3fa7aa
Median time: 1701864270
Difficulty: 4.656542373906925e-10
Confirmations: 1482
Chainwork: 00000000000000000000000000000000000000000000000000000000000005f6
Bits: 207fffff