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: 462
Hash: 3fab5d91254937ac0626d1b6506b086be2c370c404b419dba3d8379d65063a6c
Previous block: 70fd87e46cbf0bed4c5dc3ac9c00214daa672d37f447b5cfae26382025ef88d7
Next block: 17e548533a9ce1a60645cdfb1f3c48f4c3e0c80a215dff2826973ad298469efb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864220
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: fdcc9f2f7e0c645afec2ca24ed541622cc5ae63fd5a67756ce65a646bfcd4389
Median time: 1701864220
Difficulty: 4.656542373906925e-10
Confirmations: 1782
Chainwork: 000000000000000000000000000000000000000000000000000000000000039e
Bits: 207fffff