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: 1349
Hash: 20f509055beb868be142994dc4045806c13eb48f9d1af6bfe101e862cd0bbfa4
Previous block: 084b87c50619480eaf75e9288483185e2a91294a2ffed391f3215f96283e04a7
Next block: 6bf170cc399e488da56c5a6510375c35393593866a4a01f3cfd7e52260038eff
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697632
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 1ac539a41897fd4913a0ba49259336a45e75a312dfe895514703467a10c6a46e
Median time: 1718697631
Difficulty: 4.656542373906925e-10
Confirmations: 895
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a8c
Bits: 207fffff