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6 views

If you query storage or big map at block X does it include changes from operations of block X?

The RPC (currently delphinet), allows you to query a contract's storage and big map key at a particular block id. GET ../<block_id>/context/big_maps/<big_map_id>/<script_expr> GET ....
1
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1answer
58 views

Why are formal proofs and verification important for smart contracts?

On the Ethereum blockchain, there is a lot of talk about formal proofs and verification of smart contracts. In particular, ERC20 tokens and various exchange contracts will mention that they are ...
0
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0answers
7 views

Can we get Tezos added to the bep39 mneumonic converter tool?

Good afternoon, Currently there is no tool to conveniently look work with Tezos addresses and convert from mneumonic to secret key, from encrypted to unencrypted. Iancoleman has created a great tool ...
0
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2answers
38 views

Michelson gas cost optimizations: any techniques, patterns and rules of thumb

Gas cost is an important topic in smart contract development. We want to maintain the costs as low as possible to allow for more operations in a block. There is a handy gas consumption reference, but ...
0
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0answers
20 views

Where is a working, relatively easy to use mneumonic converter for Tezos?

A little request to baking bad, or TezTech, or anyone else who wants to create this. I have a reqeust to have a mneumonic code coverter for bip39(tz1),Secp256k1(tz2), NIST P256(tz3) created, similar ...
0
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0answers
28 views

Delete This - Delete Me

Delete This - Delete Me Delete This - Delete Me Delete This - Delete Me Delete This - Delete Me
3
votes
1answer
36 views

Max stack depth of a Michelson program?

Is it possible to determine an upper bound for the (runtime) max stack depth that a given Michelson program will use? I'm thinking here in terms of static analysis of the program. So, 'given a ...
0
votes
1answer
8 views

Smartpy transfer contract balance to an address

I'm trying to figure out how to withdraw money from the contract within a smartpy entrypoint, and test the result in my scenario. When I test the entrypoint: @sp.entry_point def withdraw(self, ...
0
votes
1answer
13 views

Missed Block with “Error Found No Ledger corresponding to ledger:…”

Missed a block and saw the following error on the baker terminal window (Ubuntu) "Error Found no ledger corresponding to ledger://xxx..." This made me think that there might be a ...
0
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2answers
26 views

Formal verification on ETH EVM

Can you write verifiable code for ETH? if so what's special about Tezos in this respect, does it run faster, is writing the verifiable code faster?
1
vote
1answer
24 views

Design an oracle that provides random values to a contract

This answer mentions an improved way for an oracle to provide random numbers to a contract. use commitments, i.e. the oracle would push a hash in the contract before the game, and send the random ...
1
vote
1answer
34 views

how to get content of message in shielded transactions?

I have a message send with tezos-client like: tezos-client sapling forge transaction 10 from alice to zet13Alicexxxxxx using sap --message 'test' How to get content of send message in shielded ...
1
vote
1answer
21 views

How are tickets passed to and read by contracts in the Edo protocol?

The Michelson documentation for the Edo protocol mentions four new operations for tickets and this blog post has an example of how tickets are used. I see that the contract in that example can take a ...
0
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2answers
27 views

What is script_expr?

The RPC for querying big maps mentions script_expr, but no where else in the Tezos Developer Documentation is it mentioned. What is script_expr? Where can developers learn more about it? What ...
0
votes
2answers
26 views

Delegated funds aren't appearing [closed]

I've delegated all my tezos from ICO using TezBox and at first everything was OK. But recently I had some problems with TezBox wallet and decided to install Galleon instead. I downloaded Galleon ...
0
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0answers
23 views

How many confirmations is considered safe in Tezos? [duplicate]

Is Tezos similar to Bitcoin in that the more confirmations you wait, the more secure your transaction is? If so then how many confirmations is generally considered 'safe'?
3
votes
1answer
45 views

Stuck transaction for more than 12 hours

i tried sending my funds from trezor Simple Staking wallet to the exchange, and it seems that the transaction is stuck. i tried many recommendations online such as increasing the transaction fee but ...
2
votes
1answer
38 views

stuck transaction error: Pre-validation error

I was trying to send a transaction from my Trezor SimplyStaking wallet over 5 hours ago and seem to get an error. at the tzkt explorer, it says the following errors Status Branch refused Pre-...
0
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0answers
14 views

Multiple identical “Current head” log messages

My freshly started node using v8.1 is connected to two nodes using v8.1 and it gives me these messages for every new head: 2021-01-11 18:59:00.915 CET Jan 11 17:59:00.915 - prevalidator.NetXdQprcVkpa....
0
votes
1answer
14 views

Is SmartPy package inside All Michaelson Supported Languages?

I've discovered that Liquidity, LigoLang and Ocamel Support Tezos development, but I've only found 1 resource that states that SmartPy supports only LigoLang. I wanted to use the right language to ...
2
votes
1answer
50 views

How can I make a proof of burn address?

I’ve been doing a lot of thinking about NFTs and was wondering how to go about creating a public provable burn address to send redeemed/needing to be removed from the useable Universe NFTs to?
0
votes
1answer
31 views

Smart contracts - get tz address from signature like ecrecover ethereum

I want to be able to verify that a signature is signed by a public key's address in my smart contract method on tezos. For example with solidity see: https://ethereum.stackexchange.com/questions/2171/...
0
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0answers
9 views

DAppClient with Tezos SetProvider? (this.walletProvider.mapOriginateParamsToWalletParams is not a function)

const wallet = await this.getWallet(this.selectedNetwork); // get wallet using DAppClient... const Tezos = new TezosToolkit(this.config.rpc_endpoints[this.selectedNetwork]); Tezos.setProvider({ ...
1
vote
1answer
30 views

Translating gas and storage units to XTZ

I'm interested in translating the gas and storage costs I get in response from the node after an operation into XTZ prices. Where could I find this information online?
0
votes
1answer
35 views

Tezos SmartPy Developer Course video 1.2

How do I get find the Tezos test net as opposed to the web browser smart py interface? Regards WF
1
vote
1answer
30 views

node log - node.validator: fetching protocol PtEdo

Seeing the following warning in the node log node.validator: fetching protocol PtEdoTezd3RHSC31mpxxo1npxFjoWWcFgQtxapi51Z8TLu6v6Uq node running PsDELPH1 what's the issue? thx
3
votes
0answers
49 views

Tezos on a ERC20 Wallet

Sorry in advanced, my english is not the best. but i have to try. Situation: I bought Tezos on the Binance App. Then i sent all the Tezos to my Wallet (ERC20 Wallet). Now its not showing on the wallet,...
1
vote
1answer
32 views

proto.007-PsDELPH1.storage_exhausted.operation when originating contract (storage_limit is set)

I am trying to deploy a contract to delphinet with truffle. On a local sandbox the contract deploys just fine, but for the deployment on Delphi I am getting: proto.007-PsDELPH1.storage_exhausted....
1
vote
1answer
45 views

Calling contract entrypoint having complex parameters

I am trying to call FA-2.0 transfer entry point using tezos taquito, I have also gone through https://tezostaquito.io/docs/complex_parameters/. however I get the error below when I try to call ...
1
vote
1answer
32 views

Manipulation of Tezos.amount and test cleanup storage

I am about to write some tests to verify some method functionality. The method functionality is quite simple: function checkAmount(const store : storage) : storage is block{ if Tezos.amount <= ...
3
votes
0answers
34 views

v8-release - Illegal instruction (core dumped) on AMD Phenom II

After building native binaries of version 8 from source, running tezos-node gives me: Illegal instruction (core dumped) Since Rust is the new requirement for v8, I thought that maybe the Rust ...
1
vote
1answer
32 views

Tezos removed by baker [closed]

i had some tezos removed by my baker (fresh tezos). Would this just be their annual fee? i always assumed they took their 15% before distributing xtz to my account. Why would they removed a large sum ...
1
vote
1answer
44 views

“Invalid bytes error” on migration of PascalLigo contract

I am trying to write tests for my contract, which stores an user as follows: type userData is record [ addressSet : set(bytes); storedAmount : tez; ] My storage is a big_map as ...
1
vote
1answer
81 views

Keep getting Error: Cannot read property Sign operation of Null

I am trying to un-delegate within galleon and I keep getting an error stating "Cannot Read Property 'signoperation' of null. I have increased the custom fee to .05 xtz and I have 1 xtz in my ...
3
votes
1answer
47 views

Ledger Blake2b hash calculation

How is the “Ledger Blake2b hash” calculated by the tezos-client and the Ledger? I can calculate the other hashes, but unable to figure out the “Ledger Blake2b hash”: Raw Script-expression-ID-Hash: ...
3
votes
1answer
46 views

Debugging RPC requests with tezos-node logging

According to the help page for the tezos-node you can pass -vv to get logs at the debug level. I'm looking to see the request body, response, and status codes in the RPC logs but that information ...
2
votes
2answers
29 views

Making an RPC request from another machine on the same network

I have a machine (A) running a Tezos node, with RPC port set to 8732. Its local IP is 192.168.1.200. I have another machine (B), from the same network, from which I'd like to connect to the RPC of A. ...
6
votes
2answers
82 views

How to convert bytes to an address

When reading operations from a block, implicit accounts and contracts are returned with a key bytes and in hexadecimal format. "parameters": { "entrypoint": "transfer"...
1
vote
0answers
11 views

Changes upcoming with version 8 - changelog item When the client asks for a password

This item is listed in the change log for v8, "When the client asks for a password, it no longer tries to hide its input if the client was not run from a terminal, which allows for use in a ...
3
votes
1answer
41 views

Is it possible to set up a tezos node to watch a smart contract?

When running a Tezos node, is it possible to set up a subscription service so that you can be notified of transactions spending from, or interacting with a smart contract? For example, if you want ...
3
votes
1answer
37 views

How to monitor RPC block responses for token transfers?

I am wondering how to effectively monitor for some given address for FA 1.2 and FA 2 token balance updates. Given that the entrypoints to the contract are defined, I'd like to write something which ...
1
vote
1answer
21 views

How to compare a mutez value with int in smartpy

When trying to check the transferred value is positive I get an error that TMutez is not TIntOrNat.: sp.verify(sp.amount > 0, "Amount should be positive")
2
votes
1answer
35 views

SmartPy Contract: Receive a balance?

I'm learning SmartPy and I'm trying to make a simple escrow contract. I read that contract.balance can be used to access the balance of a contract. In that case, how would I go about receiving XTZ to ...
1
vote
1answer
29 views

Can't import snapshot: Missing protocol (PsDELPH1xsx)

I'm on macOS Catalina. I'm attempting to import a snapshot. It will import all of the data, but when cleaning up I encounter an error and the import doesn't finish. ./tezos-node snapshot import ~/...
4
votes
0answers
29 views

Voters listing on Tezos Agora

My team and I just voted for Edo. We are on the list of voters; just with our address. We would like to appear there with the name of our organization as well as with the logo and the link which ...
2
votes
1answer
32 views

How to resolve sp.TKey is not sp.TAddress error in SmartPy?

I have a function like this @sp.entry_point def _verifySigPersonalSign(self,req,sig): sp.verify((req.deadline != sp.timestamp(0)) | (sp.now<=req.deadline), "request ...
1
vote
1answer
54 views

Tezbox wallet does not show TZ1 wallet balance [closed]

I have Depected 9.5 XTZ into the address of TZ1 wallet and was recorded on the blockchain, but when I checked the balance in Tezbox wallet, I did not see the balance like picture. My TZ1: ...
2
votes
1answer
19 views

How to compare timestamps in tezos smartpy?

req passed to _verifySigPersonalSign will be of type ERC import smartpy as sp ERC = sp.TRecord(sender=sp.TAddress,to=sp.TAddress,deadline=sp.TTimestamp) class StoreValue(sp.Contract): @sp....
5
votes
1answer
80 views

On what block levels within a cycle can roll snapshots happen?

According to this documentation: Roll snapshots represent the state of rolls for a given block. Roll snapshots are taken every BLOCKS_PER_ROLL_SNAPSHOT = 256 blocks, which is 16 times per cycle. ...
6
votes
1answer
92 views

Updated fee constants in Delphi?

I am using the following formula and associated constants to calculate fees: https://tezos.gitlab.io/protocols/003_PsddFKi3.html#more-details-on-fees-and-cost-model Also referenced here: https://tezos....

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