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: 2341
Hash: 485bdf71751efc56189b155d7e1e8b200544d686bebd0ee8c8aab21b8c621bc3
Previous block: 3cd21096cc8fa59513fc8f504fcb7acc8cb1861b0ed0263a27d9d7ab4ad5a363
Next block: 2fc6c556814849fae3de2ae1d35ac52bfdd3d4418980448f19ee52c57e6296bd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847277
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: be69fcd8a962c9d5c5ffec35c9f14c881e8b075b55df54620b9082da3637f936
Median time: 1743847276
Difficulty: 4.656542373906925e-10
Confirmations: 302
Chainwork: 000000000000000000000000000000000000000000000000000000000000124c
Bits: 207fffff