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. mupBAc74k

Height: 2258
Hash: 29c44aec0fc1c68fafa57bc26da873a00bcf84caec398d1fc86da9e0a2c881e0
Previous block: 164ecc786b61d3b56a257155dc5bc18c3c1bb7dc9f606203bfb163de1255a830
Next block: 53c610773f0da7f7884aeaf4997ad87b0f46fb90c0b1005c74be7cab5d58f650
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480986
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 419deefc475c8a7effc09c05030939b3ad8c16c4768affba274fc06dd6aeafc5
Median time: 1719480985
Difficulty: 4.656542373906925e-10
Confirmations: 34
Chainwork: 00000000000000000000000000000000000000000000000000000000000011a6
Bits: 207fffff