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: 1261
Hash: 2385ad01a65b6605fd0fb5ad4d1c88b1826433a14e2faaed67e53c4888274926
Previous block: 732bc22e7583c04cfa8756245cbadcb67e4f910e9d3c06d888fe1c9047491fa4
Next block: 1a99ff3298c4abdb29c96a2d679ecf44ef632161548973e8d5c3c8a99818ef3e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697618
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: f01b1e3158cd687bcfc522c0da2d9fff1bfabcba2bc03bbc999fba29c6aa5286
Median time: 1718697617
Difficulty: 4.656542373906925e-10
Confirmations: 983
Chainwork: 00000000000000000000000000000000000000000000000000000000000009dc
Bits: 207fffff