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: 2405
Hash: 6903f57f51c13e973620304f074589727a3498c70e42e5150ff9fb1a6e995901
Previous block: 19bb014bb4cc65063c4ff4cbf60a921b2dbd4a85e42a0a50f5d2a920cb2163bf
Next block: 775d07a91cb49e19b2a30033bf0c2f3e4cc88a0025dbe07a27d0f3c714933a2a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847287
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 52db01a67c65125317f1983da51cbd5d894a4249e533f568d4589850e182aa7e
Median time: 1743847287
Difficulty: 4.656542373906925e-10
Confirmations: 238
Chainwork: 00000000000000000000000000000000000000000000000000000000000012cc
Bits: 207fffff