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 need 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 objective of BTC Relay is to cross 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 be capable to ship it to any specified Ethereum contract. Extra particulars within the spec.
The objective is to determine safety points reminiscent of 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 will even be eligible for bounties.
Please word that since BTC Relay has a separate open-source grant for bounties, main bugs can be rewarded as much as 1 BTC. A lot greater rewards are doable (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 consumer performance (for instance Bitcoin block timestamps aren’t checked to save lots of 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 of.
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 crew aren’t eligible for bounty rewards. However, this additionally implies that past financial rewards, each bounty can also 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
When 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 number 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 would it not be if BTC Relay began with the block two issue retargets in the past?
- at present, that will be block 389088
- there’s a script that anybody can run to submit block headers to BTC Relay and what do you suppose its default price, which verifiers of a Bitcoin transaction pay in ETH, ought to be?
- script’s present price is 0
- it often prices lower than 0.01 ETH to submit a block header. ought to the default price be 0.01 ETH?
- this default price may be overridden to no matter submitter needs, though the inducement mechanism makes it in order that setting the price 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!
