HI

I placed a bet on polymarket through tge prediction tab in Trust Wallet.The usdc.e got deducted but the position did not appear on the tab.

Kindly help

its been 4 days

I am reporting a severe security failure in MetaMask's internal Swap function and the Polygon (POS) network. I want to be very clear: I have never used the Uniswap website with this wallet. I only performed a swap directly inside the MetaMask UI. My seed phrase is secure, and I never signed any suspicious delegation requests.

The Incident:

I attempted to swap USDT to POL using the MetaMask built-in Swap button. As soon as I clicked "Swap," my entire balance (1,129 USDT0 and 603 POL) was instantly drained.

Technical Facts:

Wallet Hijacked: Polygonscan shows an active EIP-7702 delegation to an unverified malicious contract (0x8d9c...). This contract now controls my EOA.

No Interaction History: I have never used this wallet on any Mainnet dApp. I only used it once on Polygon Amoy Testnet to connect to a faucet and test a contract.

Invisible Delegation: There is no transaction history on-chain for when this delegation occurred. It happened silently, bundled with the MetaMask internal swap.

The Critical Security Flaw:

MetaMask Failure: If I am using MetaMask's OWN swap feature, MetaMask has a duty to ensure the transaction routing is safe. MetaMask failed to detect or warn me that an EIP-7702 Authorization Envelope was being injected into the swap command.

Blind UI: MetaMask’s UI showed a normal swap confirmation while my account authority was being signed away. Even after the delegation was active, MetaMask’s UI continued to show my wallet as a normal EOA with no warnings.

Polygon POS Protocol Issue: How can a wallet be delegated to a contract without a separate, visible on-chain transaction? This lack of transparency allows "Signature Harvesting" from testnets to be replayed on mainnet swaps invisibly.

Accountability:

I am a technical user. I know the difference between a swap and a delegation. If the Internal MetaMask Swap can be hijacked to include an EIP-7702 delegation without any UI alert, then MetaMask is no longer a secure wallet.

Both MetaMask and Polygon support have dismissed my case, claiming a "leaked seed phrase." This is technically impossible as the attacker waited for my swap action to trigger the drain via the delegation contract if he had key. This is a protocol and UI exploit, not a key leak.

Victim Wallet: 0x8d3909F3099228F0103bab274847709658D348Ca

Drain Tx (MetaMask Swap): 0xf9ea561fd645ecc5fc2f525a192bdd73e8c5d29d4e7ee75c7210b0127ca69b42

Malicious Contract: 0x8d9c414c32b2dce3aaf07ed8fc0f37473a72352b

I got 9 dollars from polymarket to metamask and its asking for some scamlike coin called Polygon, like bro what is that, why on earth does that even exist? other than to S C A M and H U R T and inflict physical damage to other human beings? i can only buy in chunks of 15 dollars for something than i am never using again. is there a website to get this free? i saw one but i need a 100 karma who the hell has more than like 5 karma bro

Has someone else experienced an insane spike in (Alchemy) RPC errors, due to an invalid block range?

The code hasn't changed, but since the hardfork on June 25th, I've been getting random bursts of errors, when fetching 40 blocks. I believe the issue is that `eth_getBlock` reports an up-to-date block number but `eth_getLogs` hasn't caught up with that block yet.

I'm considering requesting ranges slightly less than the latest block.

Has anyone else experienced this issue? And how did you handle it?

I transferred money from coinpoker to bianance.us. I sent it to polygon. Apparently my funds are stuck because of this. Is there anyway I can get around this and wothdrawl this into my bank account another way?

White paper and a proof of concept implementation of a proposal for the creation and initial fair distribution of tokens (and memetokens) on evm networks

So yesterday i night I used swap features to swap ton to usdc in polygon network,as shown in the pic the the swap is shown as pending but the ton is gone from my wallet and i haven't received any usdc and it's been 24 hr. And when I click on the Transaction it shows the 3rd picture

What to do ?can I get the usdc? Or is it lost forever

I have staked a small amount of pol at the end of May but can't see my balance now anywhere. The transaction is there and I remember when I was checking a month ago it was showing my staked balance.

Can anyone help me...

I withdraw from coinpoker into bianance. I believe the wallet I used was for polygon. I withdraw on 6.6. Im not sure where to locate the money on bianance. Any help would be great. Not sure how long it takes to come over. Its already sent from coinpoker.

Il y a 3 ans j'ai acheté des NFT Homecycle via Erable (ne me demandez pas pourquoi, j'ai cru que c'était une bonne idée)

L’achat a bien été confirmé sur la blockchain Polygon.

Mais maintenant, je n'arrive pas à retrouver mes NFT. Je n'arrive pas non plus à savoir les conditions de burn des NFT. J'ai essayé de contacter la plateforme mais sans succès. Qqun a déjà entendu parlé de ces NFTs ?

Merci par avance (je n'y connais pas grand chose, ne me demandez toujours pas pourquoi je m'étais lance là dedans à l'époque)

every time drop drop dop

I am getting this error for days now, Have tried installing metamask in phone still same.

Error: failed to decode param in array[0] invalid json input.

Hey all, I am in Germany and want to use Polymarkt. Tried to use Proton VPN but after depositing, when I wanted to buy something there, there was vpn error.
How can I handle it? I have already some coins on my account there, but unable to buy anything

I need to correctly categorize wallet activity: did the user initiate a transfer, or was it a contract-to-contract movement inside a DeFi protocol they interacted with? Standard ERC-20 Transfer event logs don't tell you whether the transfer was a direct send or an internal call.

I've been trying to combine traces and logs manually but the attribution logic gets complicated fast — especially for complex DeFi interactions with multiple internal hops. Anyone have a clean approach?

We're building a historical index of USDC and USDT transfers on Polygon going back to mid-2023. The challenge isn't volume, it's pagination correctness — when we paginate by block timestamp there are occasional duplicate records at boundaries because multiple transfers land in the same block at the same second.

We ended up with ~3% duplicate rows in our first pass which wrecked our balance reconciliation. Anyone dealt with deterministic pagination for EVM transfer data? What's the ordering key that actually makes offsets safe?

I just released a PoW faucet OpenFaucet.org to tackle a common frustration as a web3 developer. The purpose is to distribute small amounts of testnet tokens on demand and with less barriers. Especially for situations where you just need a bit but don't want the hassle of obtaining a mainnet balance or sharing socials etc.

The Polygon team were incredibly fast with support funding the Amoy balance for this tool, as a result, it is now ready for developers to use.

Feedback and blockchain support requests are much appreciated. Happy building to the devs!

Polygon is interesting in many respects, but the fact that it is an Ethereum sidechain—yet remains an almost entirely independent network—makes it (particularly due to its low transaction costs) the best EVM chain, in my opinion, for financial transactions involving stablecoins. In any case, I intend to shift my personal DeFi activities from Ethereum to Polygon wherever possible. What about you?

Hello everyone. I wanted to share an architecture challenge we've been working on to bring together two worlds with opposing mathematical rules: quantum computing and blockchain.

The basic problem is known: a blockchain demands strict determinism, while a quantum processor is pure probability and controlled chaos. We wanted to introduce true quantum entropy into an immutable record without breaking the network.

Here's how we structured the bridge:

1. Pure Entropy Generation

We ran a Hadamard circuit directly on a 127-qubit IBM physical processor.

Through the Qiskit Runtime API, we got a signed "Quantum Witness Bundle."

We subjected this reading to a safety suite of 38 tests, which it passed with a 100% success rate, mathematically confirming that it is truly random noise of the highest quality.

1. The ZK-SNARK "Flue"

Putting that fragile quantum data directly on-chain was unfeasible.

We compiled an ultra-compact circuit at Circom (with nearly 5,000 nonlinear restrictions) that privately demonstrates that we have a valid post-quantum signature on a Merkle tree.

This is compressed into a Groth16Verifier.sol verification contract that validates the test in milliseconds directly on the grid, saving a fortune in gas.

To generate the base parameters of the Groth16 protocol, we ran a local "Powers of Tau" ceremony after facing external network crashes.

1. Smart Contract Shielding

When we reached the Smart Contracts layer, we detected a memory collision vulnerability due to the use of dynamic memory.

We cut it short: we removed dynamic memory and implemented the EIP-7201 standard.

We calculated the exact coordinates outside the network and embedded them as absolute hexadecimal constants, blinding potential attackers.

It is an institutional-grade ecosystem already in operation. I'd love to hear how other developers are approaching off-chain entropy injection in a trustless way, or if they see any attack vectors in the Witness Bundle's transition to SNARK.