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: 2017
Hash: 477747ed459181cbb6ebec29fd149c1ffe0e27775789872d9cf8f6642f1b76d5
Previous block: 5ea4905b496c4a3c28fa15463b252c8e1fd3928b5acbf130af824fc661574d03
Next block: 79540abe8b59cd486cb8d8216bcd3c31a8dfbd7e284a0ab446d0992bf223390e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964773
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 396daf9a6349363ef3c4c0c5c5d4b2be879a7bfa779cf4ba9ccff2469d083cd1
Median time: 1728964772
Difficulty: 4.656542373906925e-10
Confirmations: 227
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fc4
Bits: 207fffff