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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1826
Hash: 2b7052ff74d0df3d20326069a277ab93d9ba50d3f09b3058e9fd157aefc58bbc
Previous block: 612a3cb92d75dc7c28c00cc23b453418d75922d33d8bfc9353933f7f7b25d9b0
Next block: 400f27d00b86d165ee68fe4f3b373839eb5784fb2c963052911ced5e43d45b0f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159228
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c4e8841b146043a5d760788203d9f538d65dfe3766b58678d0f575bdda6980b0
Median time: 1719159227
Difficulty: 4.656542373906925e-10
Confirmations: 418
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e46
Bits: 207fffff