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: 2391
Hash: 1f97c61daeba40a446cfcbe5d58cfdae834accf431ab76eaf7975e16fe81fa48
Previous block: 4e7f8930a31ced3176866403bf00bc1023a63d1e24e2a6420c6ae85fcc99f425
Next block: 2392477bf968671cf53d23fde4c9b61b1ce9fea61c595736da1dfa27a3b720df
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847285
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: fa2991f2d2cd66a1bbb7a6236a2ee9e8eb54c03357b0c8b73abf04874b262db9
Median time: 1743847284
Difficulty: 4.656542373906925e-10
Confirmations: 252
Chainwork: 00000000000000000000000000000000000000000000000000000000000012b0
Bits: 207fffff