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: 712
Hash: 53b003162cfccacf37d9f49b07ff3831c4ecf943bbade3c2a411e5262954ac7e
Previous block: 4741366cee4a3342d2f6221ea39095109ea47cef6088ee7591223d984ee63767
Next block: 39322d566045fcdad9f14dbdcde7c0c7dc928a6e343132379669f98957324357
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864262
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 45e52c60d9610272356c6d61b5f7f3149bc6e12b6876951e27b019725d113a8d
Median time: 1701864261
Difficulty: 4.656542373906925e-10
Confirmations: 1532
Chainwork: 0000000000000000000000000000000000000000000000000000000000000592
Bits: 207fffff