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: 2254
Hash: 31ebc3a06bd5a67e930f052568c7c10a2f62cfba18fe1d598d01e0f5adcbade9
Previous block: 773f4e317a30b721d4a7909ea22e36354fa583360f810c805a526cd3e28fecb6
Next block: 0a0a08ded60caa717e7d011f97e63bffc8727c7ee3108d757b595fe53662a21b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847262
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c0d7ddc7e53363652ce5dca71426e2b71d12e6dc0650c72e113a9eb1ae82deeb
Median time: 1743847261
Difficulty: 4.656542373906925e-10
Confirmations: 389
Chainwork: 000000000000000000000000000000000000000000000000000000000000119e
Bits: 207fffff