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: 1122
Hash: 7e8c02d473b1bf0f572d4799467cb87cf3f8ab46a031105edd4c86e93521c7de
Previous block: 375d1a806fedeb1003eac9e7e85dafdfa19ab1c9a9bc8819533a48524b35b44c
Next block: 24376871873a25da3c9a686d49e20ea97d24a96f992ed47a039538c1561459a7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857855
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 5b8ababc5a0253168e52e4a786b2cd65840e4fdd83d4b1c74e2a06cc729a0f5d
Median time: 1707857855
Difficulty: 4.656542373906925e-10
Confirmations: 1122
Chainwork: 00000000000000000000000000000000000000000000000000000000000008c6
Bits: 207fffff