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: 295
Hash: 56ed494fb157e2f26e88b122ba68c1defe4beb90732a0f552a0c2b93af3e6c65
Previous block: 3a8b490ef9dcb381a1b2d4fd67bad3e020a3ec694cc26519cd0c33bd0caf3f17
Next block: 5c50cb72e22214f41148d328402215d6b0765b4a0f17d5ab44a3631992cf52d4
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597916
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: 87bf8a64025a223bec8d2ba1bdf432f414135675e3d25662c9d11580e1aff36a
Median time: 1701597916
Difficulty: 4.656542373906925e-10
Confirmations: 1949
Chainwork: 0000000000000000000000000000000000000000000000000000000000000250
Bits: 207fffff