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: 2631
Hash: 37647e46ec31ce24234f223ca9d6cde6761320f123bbcbf9c434182c26a20bc1
Previous block: 437c6b7d45cd5f51c75f03337f40d5ee4c9be16a23c7487dad702c462e1ddb4a
Next block: 60077a55c841f7400d9682ac8e5d9f3351b0a3f35f23457d17c248e25ab801be
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847325
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 7cc5c8046b25dce6f16ab65a659ceac860cf115bc949bc00877753674dd23a89
Median time: 1743847324
Difficulty: 4.656542373906925e-10
Confirmations: 12
Chainwork: 0000000000000000000000000000000000000000000000000000000000001490
Bits: 207fffff