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: 1964
Hash: 4bdfb31bc4f55c50dd0e593d442944d0ad2119f40330c4a1a165fe5e013344e8
Previous block: 1c0e765280198b11296cdf4d75103c1a20d02f2965f57c85bb6802e63da6105a
Next block: 7b33050ce3786ce1439e7e395952545f4ee7a275040ddc62c73a3b4a871de663
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159251
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 8b6de4768944205e298b2de9941eadd76dee4d6e550ca3e238e57c4a3d3ca5af
Median time: 1719159250
Difficulty: 4.656542373906925e-10
Confirmations: 280
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f5a
Bits: 207fffff