OFT update (#1331)

Author: jO-Osko

docs/fxrp/oft/index.mdx

@@ -24,6 +24,25 @@ On destination chains, native OFT contracts mint and burn tokens as they are tra
 For more details on how the OFT standard works, see the [LayerZero OFT documentation](https://docs.layerzero.network/v2/home/token-standards/oft-standard).
 :::
 
+## DVN Security Stack
+
+LayerZero V2 uses **Decentralized Verifier Networks (DVNs)** to verify cross-chain message integrity before execution.
+Each app configures its own security stack by selecting one or more DVNs, instead of relying on a single shared verifier.
+
+For FXRP OFT routes that include Flare, the following DVNs are used:
+
+| DVN Provider   | Flare DVN Address                                                                                                                                                                                                      |
+| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| LayerZero Labs | [`0x9c061c9a4782294eef65ef28cb88233a987f4bdd`](https://layerzeroscan.com/api/explorer/flare/address/0x9c061c9a4782294eef65ef28cb88233a987f4bdd) <CopyButton textToCopy="0x9c061c9a4782294eef65ef28cb88233a987f4bdd" /> |
+| Nethermind     | [`0x9bcd17a654bffaa6f8fea38d19661a7210e22196`](https://layerzeroscan.com/api/explorer/flare/address/0x9bcd17a654bffaa6f8fea38d19661a7210e22196) <CopyButton textToCopy="0x9bcd17a654bffaa6f8fea38d19661a7210e22196" /> |
+| Canary         | [`0xd791948db16ab4373fa394b74c727ddb7fb02520`](https://layerzeroscan.com/api/explorer/flare/address/0xd791948db16ab4373fa394b74c727ddb7fb02520) <CopyButton textToCopy="0xd791948db16ab4373fa394b74c727ddb7fb02520" /> |
+| Horizen        | [`0xeaa5a170d2588f84773f965281f8611d61312832`](https://layerzeroscan.com/api/explorer/flare/address/0xeaa5a170d2588f84773f965281f8611d61312832) <CopyButton textToCopy="0xeaa5a170d2588f84773f965281f8611d61312832" /> |
+
+:::info DVN Documentation
+
+See [LayerZero DVN Providers documentation](https://docs.layerzero.network/v2/deployments/dvn-addresses) for deployment details, and [LayerZero V2: Explaining DVNs](https://layerzero.network/blog/layerzero-v2-explaining-dvns) for the conceptual model.
+:::
+
 ## Bridge FXRP
 
 You can bridge FXRP between supported chains using [Stargate Finance](https://stargate.finance/?srcChain=flare&srcToken=0xAd552A648C74D49E10027AB8a618A3ad4901c5bE) protocol.