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: 1337
Hash: 648322f5163a0d4d6ec5c77a0c9d2c2bc2084d750b5ba09d870c93031dd801bf
Previous block: 10bb9ef1adf8ee9db564b6ff404815e01fc410844d0cb8a616d29b1ca9db9894
Next block: 13cf611e7bacde33624bd6ec963709f5601f69453f63a40d5239d91fea9821b3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697630
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 19af1522495ae0627a995890ab1279ee851e1b8affe62be9cfc13b381b2df89b
Median time: 1718697629
Difficulty: 4.656542373906925e-10
Confirmations: 907
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a74
Bits: 207fffff