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: 2008
Hash: 14a880525e4773c91682e95904cb17573b89c4addafe7827120ba9de25929d3d
Previous block: 4ebee188d7f8163a0c0dcb25a7f9a390d408833b8bb82533f64d0ae317e7096a
Next block: 3074b408be98adcb045607c2aeaa84bec58a1d1dd670d11c3cbdc2bc1d8ad9c3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159258
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 32ac73040f9e9f67dfae919df8710cbc8b40bd46eba190f73654bbfb40d0cd7d
Median time: 1719159257
Difficulty: 4.656542373906925e-10
Confirmations: 236
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fb2
Bits: 207fffff