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: 1794
Hash: 58a1aeced651977351652c0e40034b72d5139162f88b3bda77304f5adbf51f49
Previous block: 27f85d67fea697337864aded6cef9b6daf39297e54c010b4cb13d798630b83ee
Next block: 1a1fb695d633f95c731a7569822aa24954d6a4f824d4b3409f98acd22cc1f4ae
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159222
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: ba547c8d151a8b770bb9e3dc6085efd4e25406789dfbcc29628c3155f04438d8
Median time: 1719159221
Difficulty: 4.656542373906925e-10
Confirmations: 450
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e06
Bits: 207fffff