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: 1825
Hash: 612a3cb92d75dc7c28c00cc23b453418d75922d33d8bfc9353933f7f7b25d9b0
Previous block: 3942f16db01cf483c52c25ebcb85fcb92f41c67190b0b65f1c998e64a92abeef
Next block: 2b7052ff74d0df3d20326069a277ab93d9ba50d3f09b3058e9fd157aefc58bbc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159227
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c7fdbecd11a3fb4de564572318cce49963788f10a30528627cbdf53dc0dd016c
Median time: 1719159227
Difficulty: 4.656542373906925e-10
Confirmations: 419
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e44
Bits: 207fffff