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: 413
Hash: 64fab3e71ef2124d04dfb4798c3ad2edf4945055f37d476f902db281ee447512
Previous block: 7b3d09542556753752840171bde50bc9de7e555ea418c670d360b6c1f3c84fce
Next block: 4a78ec721f0ced272c230ebb708ad99a0f929c35251c125bbf31894d2c9980f4
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701864212
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: e6e20045ed970ca89e56ecd156a42dd19a7337bc31901185877a57edd0b67a30
Median time: 1701864211
Difficulty: 4.656542373906925e-10
Confirmations: 1831
Chainwork: 000000000000000000000000000000000000000000000000000000000000033c
Bits: 207fffff