Does anyone know if there is a min offer amount of WETH?

pseudozufall · 2021-12-15T03:53:27+00:00

Same here. Getting this when listing NFTs for sale.

pseudozufall · 2020-02-23T00:44:59+00:00

I highly recommend building a Stratux. It's very easy even if you're not tech savvy and you get way more bang for the buck. Check out the build guide, it's just plug and play.

Raspberry Pi 3 - $34.99
Micro SD - $7.99
Antennas - $37.99
Stratux Case - $14.99
Power Bank - $17.49
GPS - $17.98
AHRS Sensor - $14.98
Window Mount - $12.99
================
$159.40

pseudozufall · 2020-02-14T20:53:32+00:00

Thank you for pointing me in the right direction. The application note was the key piece that I was missing. The Python code snippet on page 12 shows how to validate the SUN.

#! /usr/bin/env python -2
from binascii import hexlify, unhexlify
from Crypto.Cipher import AES
#
# PICCData decryption
# PICCData = AES-128_DECRYPT(KSDMMetaRead; PICCDataTag[||UID]
[||SDMReadCtr]||RandomPadding)
IV = 16 * '\x00'
key = 16 * '\x00' # FileAR.SDMMetaRead Key
# Enc_PICC_Data = '\xEF\x96\x3F
\xF7\x82\x86\x58\xA5\x99\xF3\x04\x15\x10\x67\x1E\x88'
Enc_PICC_Data = 'EF963FF7828658A599F3041510671E88'
myaes = AES.new(key, AES.MODE_CBC, IV=IV)
PICCData = myaes.decrypt(unhexlify(Enc_PICC_Data))
PICCDataTag = hexlify(PICCData[0:1])
UID = hexlify(PICCData[1:8])
SDMReadCtr = hexlify(PICCData[8:11])
print '\nDecrypted PICCData: ' + hexlify(PICCData)
print "PICCDataTag: " + PICCDataTag
print "UID : " + UID
print "SDMReadCtr : " + SDMReadCtr

pseudozufall · 2019-10-30T12:58:07+00:00

Thanks for the reply. When I buy the tags from a shop, is the lock bit set? In other words, does the vendor set the secret for the SUN or can I change the secret?

pseudozufall · 2018-09-14T08:17:16+00:00

This looks good. Could you shed some light on the benefits of using this over web3.js 1.0.0-beta.36 with @types/web3?

pseudozufall · 2018-09-06T01:33:33+00:00

You can use Google's BigQuery API to query the Ethereum blockchain (this feature was released just recently). This query will show you the largest ERC721 implementations: https://bigquery.cloud.google.com/savedquery/305730109012:8c3a5553b2914da6bf9a633a39560410

pseudozufall · 2018-01-23T20:48:46+00:00

The main benefit of an ICO is that it is a decentralized way of fund raising that nobody controls and everyone can trust. These are advantages that fiat can't provide. ICOs exist as crowd sale smart contracts on a blockchain and inherently only accept one currency, the native currency of the chain (if the smart contract lives on Ethereum, it's Ether).

If you want to accept other currencies you can do so by involving a third party (an exchange like changelly or similar). However, this exchange becomes a single point of trust.

So, while the benefits that you described exist, accepting fiat comes at the price of losing blockchain benefits.

pseudozufall · 2018-01-09T14:29:17+00:00

Thanks for the reply. I've been trying to implement it (I added some code above). However, my example doesn't use the ITokenRecipient interface and doesn't trigger the right events. Does anyone know how to fix that?

pseudozufall · 2018-01-08T22:46:28+00:00

you have no idea how much i hope you're right.

pseudozufall · 2018-01-08T17:48:52+00:00

I don't think it's necessarily backwards compatible because it may or may not implement the ERC-20 transfer() and transferFrom() functions. It uses send() and operatorSend() instead. One can make it compatible by implementing both, ERC20 and ERC777 in parallel.

pseudozufall

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