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: 708
Hash: 56c9994a7942fd13295afeeefe04b15f13a5f5bae00462899fb80b87220b7e0e
Previous block: 1483940cc8a41e2ec3ebd12273fe563aa8a5a08d3a03987430141f686ddb2ddf
Next block: 3407a645d5c51c9553483eef93ce706efd8899ff22ed84a2cdc16866aacc8730
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864261
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 350549190a5f0fca2ba5ace59b2313c104a83d0ec8a7e5b043a5e8cf4eeb062e
Median time: 1701864261
Difficulty: 4.656542373906925e-10
Confirmations: 1536
Chainwork: 000000000000000000000000000000000000000000000000000000000000058a
Bits: 207fffff