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: 2381
Hash: 22a80a99b5e745fc54e3953d01419eaf421898751903423750f0b8979c00b33e
Previous block: 56eac48de5bfbbf08ca571e399545d06b363c8bdf8484ba34b17275faadcbee0
Next block: 2f7eceedf3c2510d8fa55a9977b495558a7717d359d51c6d9d701335495c54d7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847283
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 42b3434c5f76d095572212ea49c3891d2d0b2f82857452cacc2557d65f46cf91
Median time: 1743847283
Difficulty: 4.656542373906925e-10
Confirmations: 262
Chainwork: 000000000000000000000000000000000000000000000000000000000000129c
Bits: 207fffff