User William Entriken - Ethereum Stack Exchange

William Entriken

Member for 5 years, 3 months
Last seen more than a month ago

Twitter
GitHub
phor.net
Philadelphia, PA

189 Answers

Score Activity Newest

16 votes

How to delete a mapping?

answered Mar 12, 2018 at 21:22

15 votes

Accepted

Updating ERC-721 Token's Metadata after it was Minted

answered Sep 28, 2020 at 16:09

11 votes

_mint vs _safeMint, which is best for ERC721?

answered Dec 9, 2021 at 17:38

10 votes

Efficient approach to delete element from array in Solidity

answered Feb 27, 2018 at 6:22

8 votes

`external` vs `public` best practices

answered Dec 31, 2021 at 5:21

7 votes

Accepted

ERC20 vs ERC721

answered Jan 25, 2018 at 2:50

7 votes

Store ERC721 token metadata

answered May 5, 2019 at 16:19

6 votes

Accepted

Why are all NFTs created from Null Address on Opensea?

answered May 5, 2021 at 14:25

5 votes

How to show erc721 NFT card images in compatible wallets?

answered Oct 7, 2020 at 21:41

5 votes

Is this possible ti pay for ERC721 token with other tokens not eth?

answered May 12, 2021 at 18:39

5 votes

Accepted

Minting more than one NFT in a single transaction ( ERC721 )

answered Oct 13, 2021 at 14:14

5 votes

Accepted

What is the bytes data param in safeTransferFrom?

answered Jul 21, 2019 at 23:22

5 votes

ERC721 Token - Burn and mint again

answered Aug 5, 2019 at 0:19

4 votes

List holders and tokens for an ERC-721 contract

answered Jan 21, 2019 at 1:41

4 votes

How to detect Ethereum ERC721 token

answered Mar 22, 2018 at 6:17

4 votes

Why we can not add erc721 tokens in wallet?

answered Mar 22, 2018 at 6:22

4 votes

Accepted

Execution of ERC721 Token

answered Jun 27, 2018 at 0:58

4 votes

Accepted

How to get value history from ERC721 Token

answered Sep 19, 2018 at 15:25

4 votes

Transfer an ERC721 Token from another contract

answered Jan 20, 2019 at 20:48

4 votes

How can I find NFTS and their metadata?

answered May 16, 2021 at 2:07

4 votes

ERC-2309 Minting Multiple ERC-721 Tokens in one Transaction

answered Sep 20, 2020 at 2:00

4 votes

Accepted

How is the ERC721TokenReceiver.onERC721Received data parameter used in practice?

answered May 11, 2021 at 23:06

4 votes

Accepted

ERC721 standard - What should you pass in the name and symbol arguments passed to the constructor?

answered Jan 27, 2022 at 14:36

3 votes

Accepted

What are the risk with creating a collection that does not implement ERC721 Enumerable extension?

answered Feb 28, 2022 at 15:08

3 votes

Accepted

Given an ETH wallet address - Fetch all ERC721 tokens currently owned

answered Mar 24, 2021 at 3:04

3 votes

Accepted

Is there a reason why minting is excluded in erc721 interface?

answered Jul 19, 2019 at 19:48

3 votes

Accepted

If crypto art is stored off-chain, how does the collector have any control over their NFT's contents if the server where it is saved shuts down?

answered Feb 28, 2021 at 20:46

3 votes

Accepted

Storing ERC721 metadata on IPFS

answered Oct 8, 2020 at 4:00

3 votes

What is the point of the non-upgradability of Smart Contracts?

answered May 24, 2021 at 20:55

3 votes

Accepted

Auction data on-chain or off-chain

answered Oct 4, 2021 at 15:52

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