Stoyan Panayotov

Provide functionality for integration with Hedera Hashgraph: - added Hedera type of blockchain - added Hedera subscription type - database migration scripts - polling of Hedera mirror node for new...

HIP-801: Opcode tracer endpoint implementation for eth_debug_traceTransaction

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# Overview of Package ### Definition Add a new REST POST endpoint in `hedera-mirror-web3`, that will allow tracing historical transactions and displaying the opcodes that were executed. ### **Abstract** Add...

Create synthetic events for HAPI transactions doing multi transfers

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With https://github.com/hashgraph/hedera-mirror-node/issues/4738 logic was added in the Mirror node which creates synthetic events for some HAPI transactions. `CryptoTransfer` transactions in Hedera can be used to perform "multi" transfers, where the...

Currently, when we process a transaction in the consensus node we populate a field in the transaction receipt, called `gasUsed` which is the larger number of the pair: 1. the...

Wrong transaction receipt generated for a transfer transaction

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I'm sending a transfer to an existing account with an EVM address alias. I'm using the following code snippet: ``` const [owner, operator] = await ethers.getSigners(); const tx = await...

Work package: investigate, retest and/or fix issues around Ethereum equivalency

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### Abstract/Motivation In the last several months, a lot of HederaEthereum in-equivalence issues were addressed. In testing various items, some bugs were identified that should either be already resolved, or...

Related to https://github.com/hashgraph/hedera-services/issues/3640 Each contract that attempts (successfully or not) to deploy another contract should have its nonce field incremented. This can happen multiple times during a top-level transaction execution...

Externalize smart contract self destructs

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Create synthetic `ContractDelete` child records for contract self-destructs. Will also require a migration on the consensus node side — similar to the traceability export.

Hedera native transactions do not update the account nonce field

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Accounts in Hedera have a field `ethereum_nonce` which EthereumTransactions use for replay attacks protection. Native ContractCall and ContractCreate transactions do not check or update this value though. This may lead...

Implement the Security V2 test plan

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### Abstract / Motivation The security model of the smart contract service was recently updated to Security Model V2. More information is available in these community posts: 1. [Smart Contract...