crosscheck

Reads a Chainlink aggregator directly from the chain, pulls Pyth and RedStone, queries public exchange tickers and derives spot plus a 30-minute TWAP from the deepest Uniswap V3…

Reads a Chainlink aggregator directly from the chain, pulls Pyth and RedStone, queries public exchange tickers and derives spot plus a 30-minute TWAP from the deepest Uniswap V3 pool of the asset against USDC on the requested chain. Every source carries its own age in seconds, its own price and a link to verify it. Nothing is smoothed into an average: the median is stated alongside the full list and the maximum deviation in basis points, because disagreement between sources is the finding, not a

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.004 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2880edff…771c4e5e

URL

https://defi.halowerk.com/oracle/crosscheck

Seen

first 35 days ago · last 26 days ago

29 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.1

UN
RATED

0.392 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.608: 0.140 uncertain ? + 0.468 short ? · 0.058 to D

How the composite of 0.392 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.41	0.187		0.112	−0.351	−0.137
latency p95 it answered as fast as its class	0.20	0.42	0.400		0.080	−0.116	−0.004
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.392	gap to 1.000 = 0.608 · 0.468 short · 0.140 uncertain	0.392	−0.468	−0.140

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.600 × 0.187   liveness       
+ 0.200 × 0.400   latency p95    
+ 0.200 × 1.000   price stability
= 0.392           → UNRATED: 28 of 30 paid calls      weights 2026.09.1 · 28 samples · seed cap_01M1A5Q99G6WTT5N02SJ2SXBQB|2026-08-15T21:06:38.212Z|2026.09.1

Verify it yourselfnpx teppi-check https://defi.halowerk.com/oracle/crosscheckcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5Q99G6WTT5N02SJ2SXBQB