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: 467
Hash: 4876ceecbc7967b542ebed0dda011811a221cf7fcdc328bb52752ffd41ba5c7d
Previous block: 0793b694688da67d57e7a59917bfd2a774bbcb368310a4041472408b49d29146
Next block: 29c77192c36b5f06d49b1e48330b9b8de2a7ceb7a04296f28af04d6fc676ea9b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864221
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c3b37d59bc590d5965ad74f56543a81fbed34223e67fded16f4421ca9a6f63f2
Median time: 1701864220
Difficulty: 4.656542373906925e-10
Confirmations: 1777
Chainwork: 00000000000000000000000000000000000000000000000000000000000003a8
Bits: 207fffff