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: 296
Hash: 5c50cb72e22214f41148d328402215d6b0765b4a0f17d5ab44a3631992cf52d4
Previous block: 56ed494fb157e2f26e88b122ba68c1defe4beb90732a0f552a0c2b93af3e6c65
Next block: 74e52124f2fdbc9f03f4017d01a033ba8761e14995c667b52ead3c85b8482acb
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597917
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 92a693e5f3cb8c3e86697dd1458560096127c247754ec130aa85795da89ec521
Median time: 1701597916
Difficulty: 4.656542373906925e-10
Confirmations: 1948
Chainwork: 0000000000000000000000000000000000000000000000000000000000000252
Bits: 207fffff