Tellor Layer

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Background Usage of the current Tellor protocol is expanding, with the system having demonstrated its security across various EVM networks.…

Defending Tellor

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Tellor is a synergetic oracle protocol that is unique in the Ethereum Oracle space in the way that it enables…

Decentralizing DataSpecs

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The Tellor protocol stands out for its decentralized and permissionless design.  Beyond decentralization, Tellor offers flexibility in allowing users to…

The Disputable Values Monitor Guide

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This is a step-by-step guide for installing and using the Disputable Values Monitor (DVM). The methods outlined here were confirmed…

On-Chain Registry Testnet Deployment

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Tellor is a flexible oracle protocol that allows anyone to define new data types, known as query types, to fit…

Reflections on the First Half of 2023: Progress and Developments

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As we hit the mid-point of 2023, we find ourselves reflecting on what we’ve done and where we are.  Those…

How to Claim Tellor Autopay Tips

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This is a step by step guide for how to use Tellor’s open-source tip claiming software: the timestamps-tip-scanner. Caution: Running…

Tellor Automatic Tipping Guide

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This is a step by step guide for how to use Tellor’s open-source auto-tipper-bot to automate tipping strategies for using…

The Key To Tellor’s Customizability: An In-Depth Guide to Query Types

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In this article, we'll look at how Tellor permissionlessly enables gasless governance, decentralized cross-chain communication, on-chain API calls and more,…

User Checklists

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‘User Checklists’ have now been added to Tellor’s documentation!  At Tellor, we pride ourselves on having created robust client software…

How to Manage CLI Applications on Hosted VMs with Screen

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This guide will help you learn to use Screen. Screen is a fantastic tool for keeping Tellor clients (and other…

How to Install Python 3.9 and venv on Ubuntu

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This is a step-by-step guide for installing Python3.9 and the python virtual environment manager: venv. The methods outlined here are…

Tellor’s EVMCall: Contract Calldata Across EVM Chains

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Introducing Tellor's EVMCall Contract Calldata Across EVM Chains Discover the power of Tellor's EVMCall for cross-chain calldata retrieval, and experience…

Tellor Deploys to Sepolia Testnet

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For those new to Ethereum and similar smart contract networks, there are Mainnets, and there are public testnets. These testnet…

How to Minimize Attack Vectors On Tellor

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Overview Types of attacks on Tellor Tellor is a robust decentralized oracle that’s been live for more than three years. …

Tellor Deploys to Arbitrum

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Tellor is now live on Arbitrum Mainnet and Goerli Testnet!  Tellor is a decentralized and permissionless oracle protocol that uses…

Tellor Deploys to Filecoin Virtual Machine

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Tellor is now live on Filecoin Virtual Machine  mainnet and Hyperspace, the test-network of the FVM! FVM is a runtime…

Tellor Deploys to Optimism Mainnet

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Tellor is now live on Optimism Mainnet!  Tellor is a decentralized and permissionless oracle protocol that uses staking and disputing…

Update! New oracle contract deployed.

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  Today Tellor is deploying an updated oracle contract with some quality of life improvements. As you may recall, upgrades…

How to Withdraw Your Reporter Stake

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This is a guide for how to “un-stake” your TRB when you no longer wish to submit data to the…

How to Report Oracle Data With Telliot

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This is a step-by-step guide on how to use Telliot for reporting Tellor oracle data. This is not a guide…

How to Install Telliot – A Beginner Friendly Guide

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This is a step by step guide for how to install Telliot using the command line. Telliot is an open…

How to Create Token Approval Transactions with Remix

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This is a step-by-step guide for using Remix to build and execute an approve function. It's written for the Tellor…

Tellor Launches on Gnosis Chain

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Tellor is now live on Gnosis Chain’s Mainnet and Chiado Testnet!  Tellor is a decentralized, censorship-resistant oracle protocol that uses…

2022 Year in Review 

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It’s that time of the year again for a year in review and time flies when you #buidl.  I know…

Updating Tellor Gnosis Multisig to Safe (Gnosis Safe)

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Tellor will be transferring its funds from the former Gnosis Multisig to their latest Safe wallet (formerly Gnosis Safe). We…

Tellor360 has Launched on Ethereum Mainnet

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TL;DR:  Tellor is now the only immutable & decentralized oracle in the “EVMiverse,” complete with any easy to onboard, unified…

The Vote for Tellor360 is Live! What this Means and How to participate.

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We’ve been hard at work preparing for this moment, and we're excited it’s here.  Please read on if you want…

Prepare to Vote on Tellor360 Upgrade! (10/25)

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The vote for Tellor360 goes live on Tuesday 10/25/2022 for upgrading the Tellor contracts on Mainnet Ethereum to Tellor360.  …

Tellor upgrades on Polygon mainnet

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Tellor360 is now live on Polygon’s mainnet! We've selected Polygon as our first mainnet in production that 360 is live…

Tellor 360 deployed on Mumbai Testnet!

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Tellor 360 deploys to Mumbai   The Tellor team is pleased to announce our initial deployment of Tellor360 to Polygon’s…

Next Challenges for Tellor

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Tellor is live and better than ever.  We’ve laid out a solid plan with tellor360 for removing any lingering issues…

The Tellor Machine Part 1: Autopay

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The Tellor Machine series is an in-depth look at why Tellor works the way it works. Along the way we…

The Tellor Machine – Part 0: The Oracle Problem

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  The Oracle Problem…How did we get here? The Tellor Machine series of blog posts is an in-depth look at…

How to Query Custom Data with Tellor

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Any data, any chain, any speed We all know that you can do price feeds super easily with Tellor.  In…

Filecoin Insurance

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Piggy-backing off of our presentation on Filecoin, the Tellor devs have put together an mvp smart contract for the users…

Tellor Launches on Algorand

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In an effort to facilitate a multi-chain ecosystem, the Tellor oracle has been re-implemented for the Algorand Virtual Machine (AVM).…

Tellor RNG

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Tellor officially now has its own Random Number Generator! After seeing such high market demand for a fully decentralized RNG,…

Gas Price Oracle

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Providing historical gas price data on-chain enables DeFi protocols to build smart contracts with reimbursement functionality; helping to create new…

Tellor360 – The Next Level

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Updated October 21, 2022 Tellor as a protocol has been alive for three years now and has seen tremendous changes…

The Data Feed: A Viewport to Tellor

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The Tellor Data Feed provides a human readable view of all submissions to Tellor’s multichain databases in real time. The…

It’s Time to Vote for Tellor Treasury Q2 2022…Again!

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The first proposal for a Q2 Treasury did not pass. Unfortunately this was due to an error...the manual function that…

How to Delegate Your Vote

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If you want to show your support while avoiding paying gas voting on future Tellor proposals...   You can delegate your…

It’s Time to Vote for Tellor Treasury Q2 2022! 

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Tellor Treasuries is a special contract that rewards TRB holders who lock up tokens and participate in governance. Each treasury…

Tellor Deployed to Harmony

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We are excited to announce that the Tellor oracle is up and running on Harmony! Tellor was approved for a…

The Tellor Snapshot Oracle

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Tellor leverages simple crypto-economic incentives to decentralize the delivery of a Snapshot vote result on-chain, making real and meaningful participation…

Tellor Security 201

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The Tellor oracle is a decentralized network of reporters dedicated to providing data to various chains.  Having been live for…

We Heard You Like Price Feeds

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So we put every Coingecko spot price on chain. Tellor has always aimed to be the most transparent and permissionless…

How to Deploy Tellor on an EVM Chain

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So, your EVM chain is all ready to go, but one key component is missing… …a decentralized oracle! Well, you’re…

Tellor Year In Review – 2021

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Introduction From the lows of having to fork the entire protocol, to the highs of a Coinbase listing, key integrations,…

Don’t just Speculate…Participate!

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Introduction Let's go out on a metaphorical limb for a moment and make an assumption: Most people don’t get into…

Tellor Successfully Launches its Newest Blockchain Oracle on Ethereum

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The release of TellorX is a major step in building out decentralized blockchain infrastructure. Tellor, a decentralized oracle network, is…

Ampleforth Using Tellor As Oracle – An Amplified Look

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Introduction Tellor is pleased to be working with Ampleforth to provide price data into its smart contracts. For those that…

Decentralization… How Tellor does it.

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TL;DR No ICO or Pre-mine Fair Distribution Permissionless Nodes Decentralized Governance Transparency   From inception Tellor has prioritized being as…

TellorX Goes to External Audit

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The team has sent the code for TellorX to audit, a major milestone for launching the newest version of the…

Moving from Admin Key to DAO — Tellor’s Parachute Smart Contract

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Most blockchain projects have some sort of centralized control (admin key) that allows a developer or founding team to make…

Q2 2021 Review

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Hi Tellor Community, hope you are enjoying the summer wherever you are! Over the past quarter the Tellor team has…

Tellor X Whitepaper Released

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Today marks a special day for the Tellor team and our community. We have released the whitepaper for a major overhaul…

Tellor3 Upgrade is Live!

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This week we deployed a small but important update to the Tellor contracts and we’d like to highlight the key…

Coinbase Lists TRB

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We are excited to announce that starting Wednesday May 5, users can transfer Tellor Tributes, TRB, into Coinbase Pro accounts…

Liquity using Tellor

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Liquity, an immutable and decentralized borrowing protocol, has integrated Tellor’s oracle into their system. When we set out to write…

Q1 2021 Update

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The first quarter of 2021 really battle tested the Tellor team and community. From developing and announcing an exciting new…

Tellor token v1

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“Change is not always growth, but growth is often rooted in change.” — Drizzt Do’Urden The Basics On February 15,…

TRB Migration

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What happened On February 15, 2021, the Tellor system experienced a major error while deploying the upgrade to v2.6.1. To…

Introducing Chorus: a community currency protocol

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The Tellor team is excited to present Chorus, a community currency protocol. Chorus is being built to empower communities through…

2020 Year-In-Review

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For Tellor, 2020 was a banner year. Despite being the first full year in existence, we experienced a growth in the…

Subjectivity in Oracles

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Subjectivity, Ambiguity, and Decentralized Oracles In an instant, hacks of financial protocols, or misunderstandings of the internal workings of a…

Tellor on Matic

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As Ethereum scales we see Layer 2 structures playing a key role along the way. And so we’ve sought to…

Play with Tellor: using our new integration sandbox

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In an effort to open up accessibility for users to ‘play’ with Tellor, we’ve created Tellor Playground. This allows projects…

Tellor Security 201

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Introduction The Tellor oracle is a decentralized network of miners dedicated to providing data to the Ethereum network. Having been…

The Tribe has spoken: V2.5 passes and is now live!

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Our first upgrade using the new Tellor Improvement Proposal token governance method is in the books. We are happy to report that TIP-2,…