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: 1922
Hash: 6ec9140af6b9403f80d53726c0f3f5ef0a416fdf93573867e057145bf295faaa
Previous block: 0aae46f309e1573fec51f81b96cd2d4edcf934bae2aa4a5ed703e39ac6e972aa
Next block: 39e3723899577a0e68d43ee9703f55996a222f33adca864c6eb259b1e61cd9d8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159244
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 1cdafc53bf0a637f38e34b6dea6f5ee506d8d5cb03f10daa950baf3349fa54ed
Median time: 1719159243
Difficulty: 4.656542373906925e-10
Confirmations: 322
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f06
Bits: 207fffff