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: 1206
Hash: 3ef4389283cfacfecb3436e57baec4ab36f148c6e77bc8e3232cbeaa92e8871f
Previous block: 5945a526225e7ed9205a83f0796ea35e143b76b5603358f2b34fca916ada4c62
Next block: 5b5c4681e20478af39e8a3607c270e0d44ca6558172b609f6a9079397aca99cf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857869
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c52042a30a6463d4f021d412f2818fd55f533796453c92d5c6303733e781fd64
Median time: 1707857869
Difficulty: 4.656542373906925e-10
Confirmations: 1038
Chainwork: 000000000000000000000000000000000000000000000000000000000000096e
Bits: 207fffff