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: 1433
Hash: 7263a98be38c19514a22d6d7da5238492561972c43aa0639eea8cb30eff15d84
Previous block: 5e95fc46f8ff802abbee006db799a313ffc9259ce1b2f2ffef6b6d08c256d0f3
Next block: 4660dc3e38c60b7ef11171e52a5aac6b4edf7a9244a3f23713b97082dc259619
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697646
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9f2090542bf801cb6da15ba66a5796f2261b224e7010625c611d370ff30f018a
Median time: 1718697645
Difficulty: 4.656542373906925e-10
Confirmations: 811
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b34
Bits: 207fffff