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: 2579
Hash: 44a2e545c1dcbc049ab5300b80d449b9e46dc94f3e64adbc67667ea49331b624
Previous block: 6540b33358e0599d320a0afb9ead2a1a1172933411c8092cc2f4a3f5e826bcc5
Next block: 45c02694a2ffa774c964f399ec2388b042bfe4daffc60deaf50bf0da40753c4d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847316
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: dd167c1c2aee9ec3b610d44b61f2e7b857b58a0af68aea8e937579688d7876f5
Median time: 1743847316
Difficulty: 4.656542373906925e-10
Confirmations: 64
Chainwork: 0000000000000000000000000000000000000000000000000000000000001428
Bits: 207fffff