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: 1965
Hash: 7b33050ce3786ce1439e7e395952545f4ee7a275040ddc62c73a3b4a871de663
Previous block: 4bdfb31bc4f55c50dd0e593d442944d0ad2119f40330c4a1a165fe5e013344e8
Next block: 5335544659fc7034f6dc678b21a8055820300e175255347d2f34f204587a00f6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159251
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 30372d542434c8081c76865809ec3c20c2a688857446261a94ca041d83aa7a8f
Median time: 1719159250
Difficulty: 4.656542373906925e-10
Confirmations: 279
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f5c
Bits: 207fffff