PerpSky only publishes factual claims that can be traced to a source on the whitelist below. Sources outside it may be cited as opinion or as a supplementary view, but never as the basis for a figure.
| Category | Sources |
|---|---|
| Exchange and venue primary sources | Official exchange announcement pages; Official API documentation; Project blogs and protocol documentation; Official X accounts; GitHub commit histories |
| On-chain data | Hyperliquid public API; Arbiscan; Etherscan; Dune Analytics; DefiLlama |
| Market data aggregators | CoinGecko; CoinMarketCap; Coinglass; Velo Data; Laevitas; Glassnode; CryptoQuant; Kaiko; Economicium |
| Regulators | CFTC; SEC; ESMA; MiCA national competent authorities; FCA; MAS; SFC; VARA; BLS; Bureau of Labor Statistics |
| Industry media | The Block; CoinDesk; Cointelegraph; Reuters; Bloomberg Crypto; crypto.news |
Every news item on the site states who published the information and where. An item without both is not published. Where a number originates from a market participant rather than a regulator, exchange or protocol, it is labelled as an estimate at the point of use.
The current issue - week of 24-30 August 2026 - draws on DefiLlama for perp DEX category and venue data, CoinGlass for liquidations and futures aggregates, the Hyperliquid public API for per-market funding and open interest, CryptoQuant for bitcoin funding and coin-denominated open interest, CoinGecko for stablecoin and price data, TradingRiot Market Digest for volatility and z-score readings, SEC and CFTC public filings for regulatory developments, and Bloomberg, crypto.news, The Block, Reuters and Cooley for reported matters. Full links appear at the foot of each article.
The site does not use price-prediction pages, affiliate-ranked exchange lists, unattributed social media claims, or any source that does not disclose how it derives its figures. Where such a source is the only place a claim appears, the claim is treated as unverified and printed as not disclosed.