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: 2494
Hash: 386824e79c3df17586c99ef84ce2db0bbaf8532cb137bda81a960596f7adf5a0
Previous block: 36459b5a7b89bb1c6731ace0a76814ca46c48860572565824f527587fc57dbb2
Next block: 20f96dd0c1ca3cbaadaedabc69ffdfc04a5a0180aee039468d4d058a373cc984
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847302
Stripped size: 218
Size: 254
Nonce: 6
Merkle root: 0db6caaab38d5ef4949d2f15679716ad2079ed10b8addc204d179d68868a12da
Median time: 1743847301
Difficulty: 4.656542373906925e-10
Confirmations: 149
Chainwork: 000000000000000000000000000000000000000000000000000000000000137e
Bits: 207fffff