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: 168
Hash: 1d0ed7846ffd38e3ce1e5bfe0a26e363e5f1abe0b8f09ecaec4495acc6eb2e0b
Previous block: 3da36bbac4d84f85ae76d9429bcbaaa07c425a07062a445c68e7dd1ebbbdcce5
Next block: 2302a7707f44c299b16b88fedd2b01cacf81a64397fc61284c85a276553ae977
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597895
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 9ca6840ef17d6570f00088f2954705e2ef58ef32ef24a05f09c27a4bebbf8431
Median time: 1701597894
Difficulty: 4.656542373906925e-10
Confirmations: 2076
Chainwork: 0000000000000000000000000000000000000000000000000000000000000152
Bits: 207fffff