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: 302
Hash: 26db9c694282a46f4a8438ea9d80dfd17b3b0569729561b2fc217c108a38fb63
Previous block: 62192cf48cb5bee6059af497f6bf7711b946293f06f2f888b5f1710ebf160a04
Next block: 0e7afe9855b32908240cbfa47f2199f3c38161c9d0798e6f31d28c4fe430223c
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597918
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 9e95154c3c606b9a4f2bf7dd5c262f70771f902b6bb1171fb5278cf7093086a9
Median time: 1701597917
Difficulty: 4.656542373906925e-10
Confirmations: 1942
Chainwork: 000000000000000000000000000000000000000000000000000000000000025e
Bits: 207fffff