Questions tagged [merkleization]

Questions related to Merkle structures, trees, proofs.

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What purpose of merkleProof in contract?

I found a ABI list of this contract in bscscan: 0x16fb38712d355833647f4adfb1f6ff80f289c203. I dont know what is the purpose of _merkleProof parameter as below and what value that I can pass for it? { ...
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Any Solidity-based sparse merkle tree implemenations in production?

It looks like sparse Merkle trees are useful for proofs in L2 systems. When looking around, a number of projects can be found that implement sparse Merkle trees to authenticate state or account trees. ...
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How to reverse engineer ETH POW

If I store 10 blocks from Ethereum, with the block difficulty, mixHash and nonce etc. Transactions etc. Is it possible for me to back trace that the information I have stored is actually correct and ...
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Building receipts proofs using only information from RPC

I tried to build a proof of inclusion for a particular receipt in a block, but I noticed that in some cases, the receipt was serialised together with the partial state root hash after executing this ...
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Feedback on Implementing Merkle Airdrop for Rug Pull Victims

Summary: Developed a smart contract that enables the GovernorDAO Community to un-rug the CBDAO Rug Pull victims by providing them with a Merkle Distribution Airdrop. Over 1/3 of an already-minted ...
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471 views

Using OpenZeppelin merkle proof library

I want to use the OpenZeppelin Merkle proof library, but I am not able to figure out the hashes I have to provide in the proof parameter in the verify function of the library. Let's say I have these ...
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Does it possible to perform Merkle root proof with filters?

I have a centralized e-commerce system with orders table inside. There are few order categories inside this system such as: Pending payment Pending shipping Pending delivery Completed Cancelled I ...
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125 views

What is an SSZ partial?

What is an SSZ partial? What are its benefits and are there any existing similar concepts that would help in understanding it? Some references: https://github.com/ethereum/eth2.0-specs/pull/1184/...
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What is SSZ SimpleSerialize and why was it developed?

We were looking at the latest spec and it didn't have much background information or explanation on what SSZ is trying to achieve. What are the key goals of SSZ? Examples of its serialization and ...
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1answer
42 views

Merkle Audit Proofs of Certification vs. Ethereum Merkle Proofs

The following article explains the process of "Merkle Audit Proofs of Certification". (Link to the article) Is the process the same as "Merkle Proofs in Ethereum" ? If their process is not the same, ...
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Any known implementations for on-chain merkle proofs of historical balances?

I know it is possible to verify historical ETH balances (for the last 256 blocks) using a merkle proof on-chain - are there any known implementations? NB - I'm looking for Solidity code (i.e. on-...
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Merkeling in Ethereum

I am currently facing the challenge to prove that a transaction is mined into a block. Dose anyone know libraries/tools that do this kind of thing? e.g.: create a proof that can be validated offline ...
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Proving the Existence of Logs to the Blockchain

To preface this: I'm not entirely sure this question makes any sense. Just a thought I had that I wanted to check the feasibility of. I'm pretty sure it is possible to use a Merkle proof to show that ...