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: 1274
Hash: 27b15c610e6cdafcc99496c613404b92c35af97df9a79145ee09e67a07d213d8
Previous block: 3f988a75a61e84c115a575176a1fc42544dc18b97b0eb5ecba433f867001150e
Next block: 604eaf088b2d54e2f4f15cd0abf3706e84946499afa50a84dc6ca711a5536753
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697620
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ae7961cc6471c23846825019cba32c0cac764b4dfff90f6fe40dc01ab9146b44
Median time: 1718697619
Difficulty: 4.656542373906925e-10
Confirmations: 970
Chainwork: 00000000000000000000000000000000000000000000000000000000000009f6
Bits: 207fffff