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

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mressCpnG

Height: 169
Hash: 1027a261def9f27965788bf3167cbeb4c2bb961b846bbffef1647a0f1388af0b
Previous block: 723ad1bc2567a041bbc62a0b667bc1f23fbd8f005004093e78a87607cbec3e4b
Next block: 7db19868f68863c3f1b2e90a2036c6516ef958b9894d38d545e426441eefcd1d
Weight: 912
Versionhex: 30000003
Version: 805306371
Time: 1544074761
Stripped size: 228
Size: 228
Nonce: 0
Merkle root: 17d9987fa34005c95b4ed96cd1236f8b9b43d41eec88bcf34c57b29f8ad669b8
Median time: 1544074761
Difficulty: 4.656542373906925e-10
Confirmations: 33
Chainwork: 0000000000000000000000000000000000000000000000000000000000000154
Bits: 207fffff