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. mgqFp9Dhy

Height: 2236
Hash: 7a88b367e1f909827a1a4ecb7facba48ac80c11c3414d26040d59790075a80c9
Previous block: 0e43395f76b0f3a74f77e11ebdc4380ac3c00cac8df7d3dc539b601d3cf46bf2
Next block: 42f25029b2f15b7ee1b984de3114d436d49063e52ecbb1ab572c843572b9152f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964809
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 7cd5a8d25d2753e5f1a65183863b935ec68f7a752c890a4d3b7595317f750565
Median time: 1728964808
Difficulty: 4.656542373906925e-10
Confirmations: 8
Chainwork: 000000000000000000000000000000000000000000000000000000000000117a
Bits: 207fffff