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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2459
Hash: 43054e83c09782f2b0f6a55ca17c42fe5edb6482ccdb4b962805c83e570f96ac
Previous block: 4b55c228679997728b54b0a0e90f1a38d588586af81a8e4476850b615381de28
Next block: 465b6bec25549af48b5eb0d7c9d2cf0aa78ec8d1e17eeda2617d1f751de84a47
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847296
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: bfb294c3764cbc1052542dd305420c72307ba23f73939cb1a73197246411c593
Median time: 1743847296
Difficulty: 4.656542373906925e-10
Confirmations: 184
Chainwork: 0000000000000000000000000000000000000000000000000000000000001338
Bits: 207fffff