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: 747
Hash: 3cc8d6ce65f56729a80a8641e998c63c11a46b3ea55885c0627518b36cface4b
Previous block: 61146df06ecde9387307fce0264ce3a0ee4bab822aefd0d9c8c385fcf999ad08
Next block: 095fdc242e94845e9819ce41f73e7cb84ecf1e0816e56ccec1ff2b6d743b899f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864268
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: d19f9b2e1b651a5c8012255cd9eb65a7a141ae902b095b49f32a1b22be836f5b
Median time: 1701864267
Difficulty: 4.656542373906925e-10
Confirmations: 1497
Chainwork: 00000000000000000000000000000000000000000000000000000000000005d8
Bits: 207fffff