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: 597
Hash: 721ae4578a159a19cf6712324fa1056f49da4d30d003cdffb0926ab7b79f939f
Previous block: 3d4f55e61eb2ce93f109e30f6ac42bb9dbf160723cb01330c67bc4a836aac58f
Next block: 7079cc729cc22fadac138dbef9581e69836044ebdcce3f15ba4ea384d0ae89b0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864243
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 126bfc99e4dd30e41d21dd8a1c6467c6c875f9d2628685551ba8cd786aed97af
Median time: 1701864242
Difficulty: 4.656542373906925e-10
Confirmations: 1647
Chainwork: 00000000000000000000000000000000000000000000000000000000000004ac
Bits: 207fffff