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: 2284
Hash: 57b8d4f04919e9d961de0ffc23c648283902b341d0677a09c58fab1a024f6583
Previous block: 68229eeb1dc6f05229e28c7e96f03a11a8b68d0a843819fcf75aaba27585b82b
Next block: 79d5513c50b2e6dbc843781b5a0bb6ee97506589a4895ef8eb7d47df9be64ea5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480990
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 7449b3d10abfdc7300e5be8852a3faae48c49a7796356628170de00649ebc027
Median time: 1719480989
Difficulty: 4.656542373906925e-10
Confirmations: 8
Chainwork: 00000000000000000000000000000000000000000000000000000000000011da
Bits: 207fffff