A persistent, verifying light client in your browser: headers sync forward from a schema-defined checkpoint into IndexedDB, every header validated by the 7-rule header phase (testnet4's BIP 94 timewarp and min-difficulty semantics included), sources cross-checked, and transactions verified against your own chain — not a server's word. · schema · header verifier · spv
| class | what | this node |
|---|---|---|
| H | header chain: PoW, difficulty, timewarp, timestamps, versions | ✓ every header, locally |
| T | transaction inclusion (merkle proofs vs local headers) | ✓ on demand |
| B | block structural + script validity | – on demand via the block validator (≤6 blocks) |
| U | UTXO existence / full consensus | – requires a full node; the honest gap |