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: 2497
Hash: 09acc3f3765eb051d96fc127ea54891b4af0490aa8c8c7994beef9c88f6cca48
Previous block: 3b0b09aca9c9604f380a5645932da56386593c5dcfe5837f2ba448b0024d499a
Next block: 0b195af33b2270926473fe4d92db6509c6f7adaa17b042a1ce8d6a0a8f0c66a3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847303
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c2b712c5ded8683949dfb077404d431fe5b6c05f359d693afc1e022463836fba
Median time: 1743847302
Difficulty: 4.656542373906925e-10
Confirmations: 146
Chainwork: 0000000000000000000000000000000000000000000000000000000000001384
Bits: 207fffff