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: 1481
Hash: 77ab56a1906d600a24d2e5ea2940260520ac472793ba6f02c25f94b0576feac0
Previous block: 44be4108cc480921ecf78861c0785b9c8a942db33a502a1ae21a92d41f037c3f
Next block: 5c77cf2ff2e682c9285e53ac8ed6905af915e5b825a95813e85df3af5433b439
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697654
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 0b866dae15088d102a0500f967eeaeb2abc9903d52bf2cc96cfd2d9b05001f15
Median time: 1718697653
Difficulty: 4.656542373906925e-10
Confirmations: 763
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b94
Bits: 207fffff