--- title: "Blocksize on Tellor – Reporter & Validator" description: "Blocksize is a staked reporter on the Tellor Network, submitting real-time crypto market data on-chain and backing it with stake in Tellor's dispute-based oracle." canonical_url: "https://blocksize.info/node-ops/oracles/tellor/" last_updated: "2026-06-24" --- Source: https://blocksize.info/node-ops/oracles/tellor/ Tellor · Reporter and validator # Blocksize on Tellor Crypto prices from 9,000+ pairs across 70+ exchanges, tested against Tellor's consensus with every update. - **9,000+**pairs - **99.99%**node uptime Blocksize feed … BTC/USD … Validator address`tellorva…l4fjh7`*copy* [Listed by Tellor**Tellor explorer ↗**](https://explorer.tellor.io/validators) What we run on Tellor - Reporter - Validator on Tellor Layer Tellor at a glance · from today's FAQ The network ### What is the Tellor Network? Tellor is a decentralized oracle that brings off-chain data on-chain through a network of staked reporters. Anyone who stakes the network's token can submit data; instead of checking every value upfront, Tellor uses an optimistic model: submitted data is assumed valid but can be challenged during a dispute window, and reporters who submit bad data lose their stake. This makes manipulation expensive and keeps the network permissionless. *hover to read* Its model ### Why Tellor's model is different Most oracles validate data through upfront consensus. Tellor takes a different approach: data is submitted by staked reporters and held accountable after the fact, through disputes. A reporter who submits an inaccurate value can be challenged and slashed, so economic stake enforces accuracy, with no gatekeeper. It's a crypto-native, permissionless way to keep data honest. *hover to read* Our role ### Blocksize on Tellor Blocksize is a validator on the Tellor Network. We stake the network's token and submit real-time crypto market data on-chain, backing it with our own stake. The data we report is drawn from the same aggregated market feed we deliver to our customers off-chain. You can find our validator [here](https://explorer.tellor.io/validators). *hover to read* Network participation Tellor Reporter and validator - 01Created - 02Pushed - 03Checked - 04Secured - 05Recognised **0**/5 checked 01 Created ## Built from the whole market. - **Real-time aggregation**Liquidity is scattered. Prices are aggregated between 70+ exchanges live. - **Outlier detection**Individual trades are filtered using confidence intervals. - **Dynamic source**Markets that show sustained drift, staleness, or unreliable volume are dynamically excluded. - **Contingency logic**We have clearly defined rules in place to address rare situations where data is delayed or missing. - **Governance by design**All methodology rules are overseen by the Blocksize Data Committee. 02 Pushed ## Our node, our endpoints. Blocksize reporter → Tellor Layer → weighted median, bridged on-chain. 03 Checked · Dispute window ## Tested by consensus, every update. Our report enters a power-weighted median and stays open to disputes for the dispute window. Our accuracy is not a claim we make. Tellor measures it each time we submit. 04 Secured ## Every minute, on the record. Node uptime 99.99% per network. The status page lists each downtime minute instead of a badge. [**99.99%**node uptime*Node status, every network →*](https://blocksize.info/node-operations/performance/) 05 Recognised ## On Tellor's own pages. Tellor lists Blocksize on a page it runs. Open it and check. Tellor explorer, validators**“Blocksize · BONDED”***open the source ↗*Listed by Tellor 5 layers, trade to chain ## From a trade on 70+ exchanges to Tellor's consensus. 01 · Exchanges Trades and quotes from 70+ venues. Liquidity is scattered; no venue alone is the market. 02 · Aggregation 9,000+ pairs, outliers filtered, drifting venues down-weighted, rules under the Data Committee. 03 · Reporter Submits our value to Tellor Layer. 04 · Validator Helps secure Tellor Layer. 05 · Weighted median Reports are combined by power and stay open to disputes. Why it matters to Tellor ## What vertical integration gives a network. Accuracy ### No hand-offs between trade and chain The price leaves our aggregation and reaches the network through our own nodes. Nothing in between can round, delay or replace it. Tested in public ### Every update meets consensus Each submission is compared with the other sources before it counts. Our accuracy is measured by the network, update after update, not by us. Security ### Fewer parties in the path Own publisher nodes, own RPC endpoints, own keys. A shorter path has fewer places to attack and fewer parties to trust. Liveness ### One team watches every layer Exchange outages are absorbed in aggregation; node and RPC failover is ours. The status log shows every minute. Accountability ### One name on every layer If a value is wrong, it is ours at every step, and networks penalise bad data. Incentives point one way. Diversity ### An independent operator A first-party source with its own aggregation and infrastructure adds an independent voice to each network's consensus. The same feed, eight networks [**Chainlink**Node operator and data provider](https://blocksize.info/node-ops/oracles/chainlink/) [**Pyth**Publisher](https://blocksize.info/node-ops/oracles/pyth/) [**RedStone**Node operator](https://blocksize.info/node-ops/oracles/redstone/) [**Band**Validator and data operator](https://blocksize.info/node-ops/oracles/band/) [**Supra**Data provider and validator](https://blocksize.info/node-ops/oracles/supra/) [**API3**First-party provider](https://blocksize.info/node-ops/oracles/api3/) [**Tellor**you are here](https://blocksize.info/node-ops/oracles/tellor/) [**SEDA**Data provider](https://blocksize.info/node-ops/oracles/seda/) For Tellor teams ## Add Blocksize as a source. [Talk to us](https://blocksize.info/contact/) [Methodology](https://blocksize.info/market-data/methodology/real-time-vwap/)