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: 2577
Hash: 238719130c454102c476fc3748b0f82c9ba22fea0bb99f24ef184347f813ee04
Previous block: 0c9a80c184028b187f72287ede26c11594b3a44dfd8941db8db9efc297edb34e
Next block: 6540b33358e0599d320a0afb9ead2a1a1172933411c8092cc2f4a3f5e826bcc5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847316
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9129c5e6af200dd3af5159eb721725a2a16ffc2a632541e90366e6b368614412
Median time: 1743847315
Difficulty: 4.656542373906925e-10
Confirmations: 66
Chainwork: 0000000000000000000000000000000000000000000000000000000000001424
Bits: 207fffff