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. mgqFp9Dhy

Height: 2159
Hash: 0446cd80644644d86dd029f13b093f555de803b80a8df92e0006be9914a18199
Previous block: 6aca57e0039d68b9cab979cd8ead1d1f4bbc36a2d6505a54111b3bfe0e387ff7
Next block: 6aa2ad10ae7d01b7c59e1e2ba194691aedad0a7511563869d9fa0ce524a82a4b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964796
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4096abef0e46f72679ddd6bbe5dc2e1d0f52a099bbb1b7468549dc167988947b
Median time: 1728964796
Difficulty: 4.656542373906925e-10
Confirmations: 85
Chainwork: 00000000000000000000000000000000000000000000000000000000000010e0
Bits: 207fffff