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: 891
Hash: 133143a83e841bca1b3826d42be50b6a89c7480a826766593c5a9a8ce81fb87f
Previous block: 11f20821c068c81679e87d737aad9da27b697ac0e56b6152708e99faa255f142
Next block: 1b8f4febe118b8dfc2af53585cdf491a9490ec5141cd04cb0a823ef4476b3427
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857817
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 0b6433deebba5c3b6e69225c6fd7e80d1451bf7715cf1c9a294c2fb28d575368
Median time: 1707857816
Difficulty: 4.656542373906925e-10
Confirmations: 1353
Chainwork: 00000000000000000000000000000000000000000000000000000000000006f8
Bits: 207fffff