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: 1483
Hash: 64b33f00b06b4b27fb71ce0e7489bd9acbfbd284db7a5d1b356d60c275cb63ec
Previous block: 5c77cf2ff2e682c9285e53ac8ed6905af915e5b825a95813e85df3af5433b439
Next block: 0ec7070d405ceabc798e7b806de7410f3e8045fe131478c1355d7206f48ab001
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697655
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: a216bc15d943d43aba9f50923d7aaace5c9bcef1b450404f6ebfa22c7ae23e9b
Median time: 1718697654
Difficulty: 4.656542373906925e-10
Confirmations: 761
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b98
Bits: 207fffff