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: 779
Hash: 7fb1e05c982aef5ab9ec767e7e641aa8550391786032113ee369dbacb0320006
Previous block: 26c84bb8339113568355d2e3c104df6805d44940534467bf36f9fb5c9e0b7a84
Next block: 49cb514f669220868f43752fb18e82b223cbef2e25727b837fe0eccd5284ccc0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864273
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 1c11b28f88c2fc010d0f7be9ab23ff4cf193bfc98ed2e5f572e3a16f15d81d8d
Median time: 1701864272
Difficulty: 4.656542373906925e-10
Confirmations: 1465
Chainwork: 0000000000000000000000000000000000000000000000000000000000000618
Bits: 207fffff