Registry API

interface OfficialStockToken {
  symbol: string;                    // e.g. "NVDA" — never sufficient alone
  name: string;                      // informational only
  chainId: number;                   // 4663 or 46630 — rows are chain-specific
  address: Address | null;           // null until authoritatively verified
  feed: Address | null;              // cited AggregatorV3 proxy, or null
  issuer: string | null;             // e.g. "Robinhood Assets (Jersey) Limited"
  decimals: number | null;           // null until verified on-chain
  bytecodeHash: `0x${string}` | null;
  verification: "verified" | "unverified" | "placeholder";
  enabled: boolean;                  // separate operator/governance decision
  note: string;                      // why the row has its state
}