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: 1423
Hash: 68d8d51af0de1f77ee94251a8ec89b27a800302dfc66d2ffeaf96a5a2a923cd9
Previous block: 302965595b6e8ea755c74271cf3fec63044d5121b5ddf7b32e1c1fa0c518229c
Next block: 46da4d6e1d47897a3c9dbd35bb03bd5102adf800287d392a6b6dbe2ebc0c04de
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697645
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 60eee7d88a8feb7494b08c167553db51e5befddbeeb68f35d0912b7a24fc2409
Median time: 1718697644
Difficulty: 4.656542373906925e-10
Confirmations: 821
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b20
Bits: 207fffff