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: 763
Hash: 79ad17acb8cab3d5d40278da632edae5c932ded797d47a2ecc36f9e1533add29
Previous block: 4ac6e2a078eb6326c7e5f9cc3debdab925c7ab800d2af585b5deb17dc7297b3e
Next block: 109915c30b52c3c4661d5618f9558c063b35235ad8be89d8d09d6a6926cbc132
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864271
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: af737182b2c35a6e1f791741776d1701455a14d2041c43a0c2c1643b7399f006
Median time: 1701864270
Difficulty: 4.656542373906925e-10
Confirmations: 1481
Chainwork: 00000000000000000000000000000000000000000000000000000000000005f8
Bits: 207fffff