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: 1446
Hash: 049d4c123f87f8953d956f7b8d26fa0166755c8f456d3400faf87f6c4a570e89
Previous block: 6f2a08a6d7724e3c663bb018747add5272e0b49d1ec4512b06446dc8433debfc
Next block: 31c04635694a4e4626738d39efbd80da05257d2e6e59113b5a94af194aea35ba
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697648
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 69654625bf0bd1489f15cb8a2732cad7c696f771041b32a7503cb5a125798db0
Median time: 1718697648
Difficulty: 4.656542373906925e-10
Confirmations: 798
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b4e
Bits: 207fffff