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: 1328
Hash: 627cfe28f7435bf9b0da366d1a98682cba112b4bab66de43a0c59aa4f37d07c1
Previous block: 59fb3e1ab8d2d8fdd29c11c2d9f6e3a8d57214aa24f9b74914c38321b870fa08
Next block: 67da2eb3a07c832cce424529b82090403f48a154c008d7390947d448152c87c3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697629
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 217eec5c009d516a503ee69842ded55fe815db4a9bb7c4f650d50ddf79250449
Median time: 1718697628
Difficulty: 4.656542373906925e-10
Confirmations: 916
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a62
Bits: 207fffff