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: 881
Hash: 5c7c9b22e9fdc0a25ee7995fd29b799f4779a6f0d2da765167f866eb815dd2da
Previous block: 3d31a53fa52f5b1ffc55d72b7ba9b7dc6359d6bdb39a1be6f6f52b3cc860e0ac
Next block: 6c161f7cc149d544230443c3737d1922455447b2e36219c273d7fa296ad9143f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857815
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 7bed041abc51c2e91490c5cc2edc5e7e72510cd92ab5e4dedbf67722b547dd06
Median time: 1707857814
Difficulty: 4.656542373906925e-10
Confirmations: 1363
Chainwork: 00000000000000000000000000000000000000000000000000000000000006e4
Bits: 207fffff