Questions tagged [auctions]

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What decides about the position in the block? [duplicate]

All these transactions happened within the single block: Source: https://etherscan.io/defi?q=0x8a40c222996f9f3431f63bf80244c36822060f12#dextracker Right now it is still possible to get to the initial ...
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1answer
36 views

Smart Contracts for the Blind Auctions

In blind auctions from solidity documentation what value should I insert under the bid function?Even I inserted string value,integer value under the bid function but it is showing the error as invalid ...
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1answer
13 views

Conceptual Question: What is the point of making an auction decentralized?

I understand how a blockchain works, I know the pro/cons between a centralized vs decentralized system. My question is specifically tied to auctions (eg: ascending auctions): what advantages would be ...
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1answer
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Why do MakerDAO auction keepers overpay for ETH?

Looking at a recent closed auction (https://defiexplore.com/liquidation/ETH/4876), I see that the auction keeper overpaid for too little ETH. Why?
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Gas estimation failed on remix

Cannot deploy the code, it compiles normally on version 0.4.22 with the same compiler version. I have looked at the answer on a similar thread and changed version to 0.5.11, when I try to compile it ...
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1answer
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ParserError: Expected identifier, got 'LParen' in Remix simple auction using Solidity

The line highlighted in the error is require(bid2 > highestBid2); The code: pragma solidity ^0.4.22; contract SimpleAuction { address public beneficiary; uint public auctionEnd; ...
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1answer
131 views

How to view ENS name from transaction?

This is ethereum address. On which there are a bunch of registered ENS names How can we view the actual ENS names which were registered/won in auctions from this address?
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1answer
43 views

Is it possible for start and auction and bid for multiple names(ENS) in a single transaction?

For example if I want to register three TLD domains: example1.eth example2.eth example3.eth Can I make one startAuctionAndBid transaction for all three?
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0answers
25 views

How best to handle variable pricing during auction/sale

I'm building a contract for running multiple auctions, each selling individual ERC721 tokens from an array of token IDs, and the price increases with each one sold (the properties of the sale is ...
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2answers
56 views

How can Ethereum be used to prevent fake art sales?

According to this article, some very expensive art pieces are going to be auctioned, and "the auction will be conducted on the Ethereum blockchain. A smart contract will determine the final price for ...
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0answers
86 views

Data structure to choose for this scenario?

So I just started learning and trying to code this project and learn through the process and I might have landed in a bit of a complex situation. The idea is about "blind lowest bid wins" the product ...
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1answer
253 views

Specific to Cryptokitties — Trying to learn how SaleClockAuction works

I'm trying to understand, how the actual process of putting something up for auction works and also how does web3 interact with this auction. Here are my findings till now: I think that ...
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1answer
287 views

How lost bids on ENS are credited back to my wallet ? Is it automatic or is there any manual process?

I have lost few bids on ENS and so far the ethers that I have used for auction is not credited back. So I would like to know if there is any process to get back the ether or is this an automated ...
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1answer
180 views

Lost ENS name due to auction deadlock?

I started an ENS auction on ropsten, but I forgot to bid. Now the auction date has passed. The name is listed as not available: > ethRegistrar.entries(web3.sha3('name'))[0] 1 The owner, ...
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2answers
1k views

Is it possible to get a list of all active auctions on ENS?

On testnet, there is currently a registrar running for first-in-first-served (FIFS) .test domains, which can be directly claimed for 30 days, and the auction registrar for .eth domains, which require ...