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: 754
Hash: 1f014f1d53bc1ad156e9aa4c1c680177381b594d72661d5e777499ef5c6ad5aa
Previous block: 12fbc2f9be73e9a770786691e8ccf5936bc55b27337fd0c36b398333e139c6c7
Next block: 0681fc6ecb9c3ee04f16d64ab1feba7050c17dcb2294610183e62c79bbe3ce37
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864269
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c3c038e93ec302542ce96508a13b871a3e1d67a215b2b21718cdd8a24f15815e
Median time: 1701864268
Difficulty: 4.656542373906925e-10
Confirmations: 1490
Chainwork: 00000000000000000000000000000000000000000000000000000000000005e6
Bits: 207fffff