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: 769
Hash: 65d16fa7991464b585e287bf24b30b7f565140479976023bc96e89875be65a5e
Previous block: 56db6c236aab5826c1c7b42350a365bf1fce362b95a992926116d81b5269c3d9
Next block: 6a2def1c2b363f128e9246f57a1dc3a4ffccb82859179fd3bf17a1083342fb14
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864272
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 5ab124033306fbc67120f2c58d0e46dd30d8a6c9f6a61545bf0d07704742a28f
Median time: 1701864271
Difficulty: 4.656542373906925e-10
Confirmations: 1475
Chainwork: 0000000000000000000000000000000000000000000000000000000000000604
Bits: 207fffff