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: 1302
Hash: 1bcecb833c640b4d6d14bbe1cf8ac44d8b096a8567174d1b1158fd056af61827
Previous block: 64960f4c4ce21b4769e2cb388ce0694c7a886781cf2a99f9a2a45c3cef397519
Next block: 67f870092add2b42fb58134e40493a5419eb82217b07f44b631a11dbabb31302
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697624
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a4f4bbcfc16b48c349ec0ea565b1c3ec35d5c18af33164b6e1534d94dcaa3bc2
Median time: 1718697624
Difficulty: 4.656542373906925e-10
Confirmations: 942
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a2e
Bits: 207fffff