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: 1791
Hash: 60f5fe4f5b69b0d0a74c06b28e894b25d95af28b322c6fffc6bd2ea04aef8474
Previous block: 2209c1be76679cb7a5f824d019804e82d0e4f8a97afbc6914dd984ac5f81ca4b
Next block: 36bf2beb9d21b07bdcf6c2616b6199afc6c60c2518dd24f391886bbe09e50f1c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159222
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: b96e173fc5d293ddd0999453cb329757f9cd9e2e3f0563227907b5510518c385
Median time: 1719159221
Difficulty: 4.656542373906925e-10
Confirmations: 453
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e00
Bits: 207fffff