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: 1311
Hash: 27e5a3745a24651f6f2e71adadb135ed60d55fc2fc2835e76960e8818357a65c
Previous block: 7551463c28e97222305d1cc398908b474a5516bb59fddf8b729dee91fe62513b
Next block: 523623302b2e05be2e43acbb538b52f853e58611e55caf85c1aabe0635cd5cc7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697626
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 6829c129155bc78c191d550467a2e66185b97ac144f0036a8da58074c2b0537f
Median time: 1718697625
Difficulty: 4.656542373906925e-10
Confirmations: 933
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a40
Bits: 207fffff