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: 483
Hash: 48e2e15ea9e716348ba5987aabcf702936a550b291849db572b7d597df904d13
Previous block: 0685015087881d971775afec050ac46f08572b9b4255a1162a7d1c843098de2e
Next block: 7568e1bd3a1ed65c320313e8efa569895c7f4d08de7e6ad5d34fdbf01828e86e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864224
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 636588f5d909f3656b0d0171caae49d4e046657abbf8e96754d06db5d4f11486
Median time: 1701864223
Difficulty: 4.656542373906925e-10
Confirmations: 1761
Chainwork: 00000000000000000000000000000000000000000000000000000000000003c8
Bits: 207fffff