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: 527
Hash: 32f1ebf49ab906637f8b9658b917ac67fe7b93f1072be53c6327e4b1c9ebd29b
Previous block: 05e987022c779fb6edc784af7838fbac6dd0d0fa8a9d69906bd7f090267decc4
Next block: 2fd2000e01a90f1cd74029f7765d91dc194cf295a423fefc50839ae819a3a876
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864231
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: a057e9cba598070c09a72910439471a64b15476b5f85b65e424b2bc4e12d464a
Median time: 1701864230
Difficulty: 4.656542373906925e-10
Confirmations: 1717
Chainwork: 0000000000000000000000000000000000000000000000000000000000000420
Bits: 207fffff