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: 560
Hash: 5684b70447ead4dc25fe4baf3018569e15dfbb4d878504e3357df488e112e799
Previous block: 69868a3038cde587f5e9d344714cbce34c524a12e217ba01ed556fc79a23c829
Next block: 395e51585c5890844c6e71e7c56792a35d2d76b4da2df7034b2cc428effc6ebd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864237
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: dd07c348a96b9048572447fb9d0711cf9036a29d79ddb1ca2965890638461e24
Median time: 1701864236
Difficulty: 4.656542373906925e-10
Confirmations: 1684
Chainwork: 0000000000000000000000000000000000000000000000000000000000000462
Bits: 207fffff