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: 460
Hash: 7ff2793617912d5f3ac0f1b3931c5145dabd8f06f30a907939ec3d29146288cb
Previous block: 4418222242920b6502112f21cc5f0405bbabfb52766b74f4f629ab1bb4d1af9b
Next block: 70fd87e46cbf0bed4c5dc3ac9c00214daa672d37f447b5cfae26382025ef88d7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864220
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 945c0619ba8609aad11bca8a30f5673b8fe6efc397ea456cf7ae65be84ed9aec
Median time: 1701864219
Difficulty: 4.656542373906925e-10
Confirmations: 1784
Chainwork: 000000000000000000000000000000000000000000000000000000000000039a
Bits: 207fffff