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: 883
Hash: 0d54d0e20f61c09a2c5546cb76e074fa1009b5ecaaeddf44e01175982d54c59d
Previous block: 6c161f7cc149d544230443c3737d1922455447b2e36219c273d7fa296ad9143f
Next block: 352a918401c2c91d13a9330e9b9a28be95e2a4f47b621a5c469b8685220666c7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857816
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 880193bfa8f76d62bf70e2e19bf9653ee974386c8ce74907264f5a5eadf1f96b
Median time: 1707857815
Difficulty: 4.656542373906925e-10
Confirmations: 1361
Chainwork: 00000000000000000000000000000000000000000000000000000000000006e8
Bits: 207fffff