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: 2618
Hash: 1120840fb5217e579a8369bc7c7bb35314a9a8ab0142fb3e270f4fcd990615a6
Previous block: 401f75f2543f7f42b18a276e309355fd4cb95b2007e27b8415e52426126f0ee5
Next block: 316fb10daa54e2aadb30cba20c9b7efb16c76046a71d5ba60352db8e4334691a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847323
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0f048ff8b762df2a56ec41632af327f10f5e349e27671aef1efdba8b8b6fd23a
Median time: 1743847322
Difficulty: 4.656542373906925e-10
Confirmations: 25
Chainwork: 0000000000000000000000000000000000000000000000000000000000001476
Bits: 207fffff