provable/ethereum-api

Provable API for Ethereum smart contracts

telmofrancisco

@telmofrancisco:matrix.org

on other question, is it possible to call two url's on same query?

Oraclize Support

@oraclize-support

@telmofrancisco:[matrix.org](http://matrix.org)

constructor() public {
    OAR = OracleAddrResolverI(0x90A0F94702c9630036FB9846B52bf31A1C991a84);
    update();
}

OAR is a variable defined within the provableAPI*.sol you are importing.

telmofrancisco

@telmofrancisco:matrix.org

[m]

is there no version of provable for 0.8.0?

Oraclize Support

@oraclize-support

@telmofrancisco:[matrix.org](http://matrix.org) - No, we support Solidity up to 0.6

KizuraAmberfang

@KizuraAmberfang

hi, it's provable working atm? I'm having problem getting result from query with some smart contract that were working this morning, but now they don't

Oraclize Support

@oraclize-support

@KizuraAmberfang - Hello, could you link a transaction you were expecting __callback being triggered?

KizuraAmberfang

@KizuraAmberfang

https://ropsten.etherscan.io/address/0x7a02928ED4eF2467D0d2e9BED44Dd5dE0Ad9449C

Oraclize Support

@oraclize-support

@KizuraAmberfang - Here is the __callback transaction: https://ropsten.etherscan.io/tx/0x4be0d73938bcaabf9fd6eac7baaa2269305f7d31b456995c8f7ff4ea415d719a
Notice that ropsten experienced a spike in gas price (see here): from our records, it results the gas price was not specified in your contract, thus the 20Gwei default has been used when broadcasting your __callback , leading to an abnormal delay.

KizuraAmberfang

@KizuraAmberfang

saw it, ty

telmofrancisco

@telmofrancisco:matrix.org

[m]

https://rinkeby.etherscan.io/address/0xE0A75590b7Dfe03A9532443237c02f50dDbF0E93 why callback not being called?

using 0x146500cfd35B22E4A392Fe0aDc06De1a1368Ed48 oracle

Oraclize Support

@oraclize-support

@telmofrancisco:[matrix.org](http://matrix.org) - You are not required to set OAR for Rinkeby, but for BSC only. At the contract you linked, there is this failing __callback in response to this Update Price call.
Notice that Warning! Error encountered during contract execution [*invalid opcode: INVALID*] in the failing transaction should be related to your __callback implementation.

rawinsonde

@rawinsonde

Hi @oraclize-support , getting PROOF FAILED on the eth mainnet oracle, here's the tx hash: 0xc61cf7a22eb259f1dabb68bc201ea23f759da6e03e483b96095dbbbcb6258f19

Oraclize Support

@oraclize-support

Hello @rawisonde, thanks for reaching out, we are checking the above

Oraclize Support

@oraclize-support

@rawisonde - we detected the issue and we are on it

rawinsonde

@rawinsonde

@oraclize-support any ETA on the fix?

Oraclize Support

@oraclize-support

rawinsonde - unfortunately another problem occurred with no solution yet, we'll keep you informed

rawinsonde

@rawinsonde

@oraclize-support is the issue still present?

John Dutchak

@jdutchak

will this project be updated to 0.8.0+ anytime ?

and is this available on polygon ? or would it be as simple as deploying provableAPI_0.4.25.sol on polygon network ?

Oraclize Support

@oraclize-support

@rawisonde - sorry for keep you waiting, here's your callback:
https://etherscan.io/tx/0xade6fe509f3e1a03afcd55fb43567458fdd5a77155420e5353153bfc9930b4bb

rawinsonde

@rawinsonde

@oraclize-support no worries, thanks for resolving!

Oraclize Support

@oraclize-support

Hi @jdutchak, I'll check with the team internally and give you an answer

Saboz Trees

@saboztreez_gitlab

Hi all - new here and starting to develop with provable. Does anyone know where there is any data on average response times for provable queries? I ask as there are a ton of financial applications that all are pretty reliant on being able to get data quickly

Oraclize Support

@oraclize-support

Hi @saboztreez_gitlab, thanks for reaching out, that information strictly depends on the type of query you need and on the block time of the underlying chain you are using for your application. So, more info on that front would be useful to give you a proper answer

Saboz Trees

@saboztreez_gitlab

I am working on an application on ethereum and I will be doing requests to standard financial APIs to get things such as stock prices that are returned in a JSON format.

Philip Jonsén

@philipjonsen

@oraclize-support Nice! :)

Philip Jonsén

@philipjonsen

https://circleci.com/blog/why-brownouts/

Oraclize Support

@oraclize-support

@philipjonsen - Thanks for the interesting read - what kind of issues are you experiencing with our service?

Oraclize Support

@oraclize-support

@Ben208N - Provable permits you to retrieve data from any API or web page on the Internet, and use it in your smart contracts, e.g. you may query Provable to get the ETH-USD ticker from Coinbase API, or Kraken, whatever you desire. You achieve this by using the URL datasource. You may find more information about Provable in our official documentation

nbenuk

@nbenuk

@oraclize-support Thanks. Is Provable experiencing any issues? I'm working on my dissertation on oracles but I am no longer getting callbacks, the check query status isn't working nor is the test query.

Oraclize Support

@oraclize-support

@Ben208N the mainnet service is running as usual, the testnet one is currently suspended while we investigate a security issue affecting testnets only

Sean T

@SeanT01459583_twitter

I'm wondering if there is anyone around that can help a newbie understand what they're doing wrong with provable/oracle contracts. This is a link to the code: https://collabedit.com/da3ea

In general, what we're trying to do is use provable to pull down content from an XML file then confirm it reaches the client. Nothing too exciting, essentially a working demo of provable in the simplest way possible.

I've tried a few guides but no luck so far, maybe there is one in particular that could be recommended?

Oraclize Support

@oraclize-support

@SeanT01459583 - We are investigating a security issue affecting testnets only, and the oracle is currently suspended for those, i.e. if you are deploying on testnet, you will not receive the __callback transaction.
The mainnet service is running as usual.

Philip Jonsén

@philipjonsen

Can I ask a quick question, I work with GitLabs, CircleCI and GitHub as a developer and security operator. But I have access to thousands of cryptoprojects where I also have priviledges that i shouldnt have with projects I never worked with before. But i have, lots of grants and stuff. How come I can have so much influence? Is it because my smart contracts and the DAO's? They are old from 2015-16.

@oraclize-support

Oraclize Support

@oraclize-support

I am not sure I understand what your question is Philip

Philip Jonsén

@philipjonsen

My research says it probably has to do with the early eth contracts and the DAO contracts, so it becomes like a snowball effect with staking, lending and now most things are built on the eth network. Accoring to Vitalik owners of DAO's can have much voting power and so on. Maybe im in the wrong channel

But when I look into oraclize i get to https://provable.xyz/ and they have technologies for ethereum contracts and EOS contracts? what does that mean? I have both EOS commitee contract and the EOS contract. If you been along from the start you know that EOS, Steem, Bitshares and more was created by the same devs with some very well known names. But basiclly what i want to know is if you know any good way to upgrade contracts, either trough proxies or something? Do you have knowledge about that stuff?

Philip Jonsén

@philipjonsen

I have the founderskey to EOS and a EOS contributor contract, these contracts are killing me.

Philip Jonsén

@philipjonsen

this is all I could find from 2017, https://peakd.com/eos/@m-i-k-e/the-eos-crowdsale-contract-explained but does that work today? or whats the best way to handle smart contracts 2022?

Oraclize Support

@oraclize-support

@phillipjonsen - what are you trying to achieve?

Philip Jonsén

@philipjonsen

Im trying to upgrade my contracts and also explore why I have different grants and all kinds of stuff, like tezos I have 4 different adresses the delegate binance and other big stuff. These adresses are filled with billions Binance Delegator
tz1eogbwM5NdoojKEvvSnjYGcJapZgADRK3m
Spendable Balance: 20,680,968.621 XTZ (48,662,319.16 EUR / 1,425.9528 BTC)
Delegate: Binance Baker
Events:✅❎🤑🌚

binancedelegator

👑 Binance Delegate
tz1S8MNvuFEUsWgjHvi3AxibRBf388NhT1q2
Spendable Balance: 21,770.55 XTZ (51,226.11 EUR / 1.5011 BTC)
Tokens: 1 OBJKT, 666 OBJKT, 1 akaOBJ, 1 OBJKTCOM
Full Balance: 4,867,148.356 XTZ
Staking Balance: 52,124,837.761 XTZ (983 delegators, 6515 rolls)
Events:✅❎🤝👋💰🏁🤷🏻‍♂️🔺👉🙅

binancedelegate

👑 CryptoSweden
tz1S8e9GgdZG78XJRB3NqabfWeM37GnhZMWQ
Spendable Balance: 755.378 XTZ (1,777.40 EUR / 0.0521 BTC)
Tokens: 1 OBJKT, 1 akaOBJ, 1 KT1LMA…PnY9, 1 OBJKTCOM, 1 CA
Full Balance: 235,575.432 XTZ
Staking Balance: 2,336,305.94 XTZ (845 delegators, 292 rolls)
Events:✅❎🤝👋💰🏁🤷🏻‍♂️🔺👉🙅

cryptosweden

👑 Foundationbaker4
tz3bTdwZinP8U1JmSweNzVKhmwafqWmFWRfk
Spendable Balance: 432,000.735 XTZ (1,016,497.73 EUR / 29.7865 BTC)
Full Balance: 1,565,279.06 XTZ
Staking Balance: 11,338,765.543 XTZ (13 delegators, 1417 rolls)
Events:✅❎🤝👋💰🏁🤷🏻‍♂️🔺👉🙅

foundationbaker4

Hopefully I can get help from coinfirm that is leading in tracking blockchain movements and that kind of stuff

and I also want my blockchain diplomas ;D

Philip Jonsén

@philipjonsen

I was just able to get hold of 1,3 million with InstaDapp and there DSA(defi smart account) finally something is happening. I dont wanna put 8 million in gnosis vault by mistake again, dealing with smart contracts is hard.

Oraclize Support

@oraclize-support

@philipjonsen I don’t think this is the right channel for this discussion, we cannot really help, this channel is to discuss the integration of the oracle service, please stay in topic

Philip Jonsén

@philipjonsen

Yeah im sorry for that @oraclize-support Im just looking for some help or something to point me in a good direction. Im not going to write any more about my issues not regarding oraclize.

Thalesia

@ThalesiaCapital_twitter

@oraclize-support Hi! any new chains supported? Polygon is available now? Will be added new chains soon? Thanks!

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