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BTC/USD
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Announced by SEDASEDA blog, 2025 ↗SEDA · Data provider
Blocksize on SEDA
Crypto prices from 9,000+ pairs across 70+ exchanges, tested against SEDA's consensus with every update.
- 9,000+pairs
- 99.99%node uptime
What we run on SEDA
- Data proxy
- Premium data source
SEDA at a glance · from today's FAQ
What is the SEDA Network?
SEDA is a programmable oracle network built as its own Layer-1 blockchain. Instead of offering a fixed set of price feeds, SEDA lets developers define exactly what data they need and how it should be processed, then fetches and verifies it from any public or private source, across any chain. This makes SEDA a flexible data layer for applications that need more than a standard price feed.
Why SEDA's model matters
Most oracles give you whatever feeds they already publish. SEDA flips that: applications specify their own data requirements through programmable modules, and the network fetches, processes, and verifies the result before delivering it on-chain. That flexibility is only as good as the underlying data, which is why the quality of the sources feeding SEDA matters.
Blocksize on SEDA
Blocksize is a data provider on the SEDA Network. We supply our own aggregated, real-time crypto market data, the same feed we deliver off-chain, as a source SEDA's builders can plug directly into their applications. Through SEDA's programmable oracle layer, developers can take our market data and build custom logic on top of it: triggers, weighting, thresholds, or whatever a new on-chain product needs.
01 Created
Built from the whole market.
- Real-time aggregationLiquidity is scattered. Prices are aggregated between 70+ exchanges live.
- Outlier detectionIndividual trades are filtered using confidence intervals.
- Dynamic sourceMarkets that show sustained drift, staleness, or unreliable volume are dynamically excluded.
- Contingency logicWe have clearly defined rules in place to address rare situations where data is delayed or missing.
- Governance by designAll methodology rules are overseen by the Blocksize Data Committee.
02 Pushed
Our node, our endpoints.
Blocksize data proxy → overlay nodes → SEDA validators → any chain.
03 Checked · Overlay and validators
Tested by consensus, every update.
Overlay nodes fetch our data through the proxy; validators compare the reports and agree on the result.
Our accuracy is not a claim we make. SEDA 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.
05 Recognised
In SEDA's own words.
SEDA announced Blocksize on its own channel. The source is one click away.
4 layers, trade to chain
From a trade on 70+ exchanges to SEDA's consensus.
Trades and quotes from 70+ venues. Liquidity is scattered; no venue alone is the market.
9,000+ pairs, outliers filtered, drifting venues down-weighted, rules under the Data Committee.
Serves our data to the overlay nodes.
Overlay nodes fetch; validators compare and agree.
Why it matters to SEDA
What vertical integration gives a network.
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.
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.
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.
One team watches every layer
Exchange outages are absorbed in aggregation; node and RPC failover is ours. The status log shows every minute.
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.
An independent operator
A first-party source with its own aggregation and infrastructure adds an independent voice to each network's consensus.
Customer Voice
Blocksize's expertise in data aggregation and weighting complements SEDA's vision to make the best data available to any network. With Blocksize, developers can now access institutional-grade market data with the custom tools required to power new financial primitives on any network
Chainlink
Pyth
RedStone
Band
Supra
API3
TellorBehind SEDA
Frequently Asked Questions
If any part of your portfolio touches DeFi, on-chain derivatives or lending protocols, the prices behind those positions are set by oracle consensus. Liquidations, settlements and margin calls on-chain follow the oracle price, whatever one exchange shows. Blocksize delivers those oracle-grade prices off-chain into your systems, so your risk models match what smart contracts act on. Download our Whitepaper to learn more.
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Our feeds are validated across eight leading oracle networks, which together secure around 75% of all value secured by oracles, and delivered off-chain to institutional systems. Compliance, risk and trading teams receive the same oracle-grade prices that govern DeFi smart contracts.
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A single exchange only shows its own order book, which can drift from the real market: on even the most liquid pair, only about 25% of a top exchange's quotes sit within the true multi-venue fair value, and during stress a venue can diverge by 10 basis points or more. Listing sites like CoinGecko show a reference average, not a real-time, validated feed you can build on. We aggregate across 70+ venues in real time, filter outliers, and down-weight drifting sources, so you get the consensus price the whole market agrees on, not one venue's version of it.
As a first-party oracle data publisher, every price update we produce is independently verified by multiple node operators across decentralized oracle networks like Chainlink, Pyth, and RedStone. Submissions that deviate from consensus are rejected, and operators providing inaccurate data face financial penalties. This creates continuous, real-time quality enforcement in every single block.
Blocksize operates under German jurisdiction with full transparency and a strong focus on institutional-grade compliance.
We follow regulatory best practices to meet the expectations of banks, asset managers, and professional investors, delivering secure, non-custodial services with clear legal alignment.
For SEDA teams