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: 1782
Hash: 12b270da3770795fbb4b96a5a0ef0ee6bf7ec8fa809469fa10cb7527410e8ad6
Previous block: 1447f8ab8b1ad5d66ef8e34c20825b0f428dff5865fe0bbcc0b6f3561817d72f
Next block: 2e5847b179d5640e383ecb385acd7a37768bce1a45b7890f4810a99bc8b38f71
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159220
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c2c027e6088a4c60f30687c3465d6100069a8f0aca422519606506e1b85c6b0e
Median time: 1719159219
Difficulty: 4.656542373906925e-10
Confirmations: 462
Chainwork: 0000000000000000000000000000000000000000000000000000000000000dee
Bits: 207fffff