Following hacking @ DEVCON1, Martin Swende is Nr. 1 on the leaderboard of the Ethereum Bounty Program. The bounty program is ongoing and the final bounty awarded amounted to five BTC. This system is open to anybody. With BTC Relay preparing for launch on Ethereum and its significance for a lot of DApps, we wish to spotlight its ongoing safety audit by together with it within the Ethereum Bounty Program.
BTC Relay is an Ethereum contract that implements Bitcoin SPV: https://en.bitcoin.it/wiki/Thin_Client_Security
The chief goal of BTC Relay is to go alongside any sufficiently confirmed Bitcoin transaction, to a specified Ethereum contract. If somebody makes a Bitcoin cost, or any arbitrary transaction on the canonical Bitcoin blockchain, the relay ought to have the ability to ship it to any specified Ethereum contract. Extra particulars within the spec.
The purpose is to determine safety points corresponding to accepting invalid blockheaders, false proofs, or invalid Bitcoin transactions. Equally, if there’s a legitimate Bitcoin transaction which BTC Relay doesn’t totally relay, that may even be eligible for bounties.
Please observe that since BTC Relay has a separate open-source grant for bounties, main bugs shall be rewarded as much as 1 BTC. A lot larger rewards are attainable (as much as 5 BTC) in case of very extreme vulnerabilities. Rewards are eligible for everybody besides bounty program judges and builders of BTC Relay.
The scope is on the contract, the 5 “.se” recordsdata within the root listing of:
https://github.com/ethereum/btcrelay/tree/1466934855225b1e4a87031d299c1209ba12d503(It is a commit on https://github.com/ethereum/btcrelay develop department).
Not in scope is full SPV shopper performance (for instance Bitcoin block timestamps aren’t checked to avoid wasting fuel prices). Higher mechanisms for incentivization, fuel price and different algorithm optimization aren’t in scope. That mentioned, any such suggestions will nonetheless be gladly thought-about.
With BTC Relay now included within the Ethereum bounty program, many of the guidelines on http://bounty.ethdev.com apply. For examples, web sites aren’t a part of the bounty program and first come, first serve — points which have already been submitted by one other person or are already identified to the staff aren’t eligible for bounty rewards. However, this additionally signifies that past financial rewards, each bounty can be eligible for:
- Itemizing on the the Ethereum bounty leaderboard with factors accumulating over the course of this system.
- Private inscription within the Ethereum namereg as soon as it is reside.
- An unique, restricted version Ethereum Bountyhunter t-shirt
Should you’d like to hitch the channel for BTC Relay, it’s open to all at https://gitter.im/ethereum/btcrelay. The bounty program will run for a couple of weeks earlier than launching BTC Relay to Frontier. Listed here are some objects to debate with the neighborhood and open questions for the Frontier launch:
- what ought to be the primary block in BTC Relay?
- for technical and sensible causes, the earliest block that may be saved in BTC Relay is block 2016 (first issue retarget). BTC Relay’s first block have to be on a problem retarget, ie a block divisible by 2016.
- how seemingly are you to confirm Bitcoin transactions from some time in the past?
- how helpful wouldn’t it be if BTC Relay began with the block two issue retargets in the past?
- presently, that may be block 389088
- there’s a script that anybody can run to submit block headers to BTC Relay and what do you assume its default payment, which verifiers of a Bitcoin transaction pay in ETH, ought to be?
- script’s present payment is 0
- it normally prices lower than 0.01 ETH to submit a block header. ought to the default payment be 0.01 ETH?
- this default payment might be overridden to no matter submitter wishes, though the motivation mechanism makes it in order that setting the payment excessively is unlikely to be rewarding
Lastly, the BTC Relay Bounty Program was added in “information & updates” to bounty.ethdev.com a few weeks in the past, and has already attracted 1 bounty submission!
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