Endpoint · otherGETai-data-marketplace-1042299154756.us-central1.run.app /api/v1/contract_proxy_check ?chain=base&contract_address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Inspect live bytecode and common EIP-1967 and EIP-1167 storage patterns to identify upgradeable contract proxy evidence.
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.005 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/contract_proxy_check?chain=base&contract_address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Seen
first 34 days ago · last 21 days ago
40 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.3
UN
RATED
RATED
0.818 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.182: 0.096 uncertain ? + 0.086 short ? · 0.082 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.846 | 0.508 | 0 | −0.092 | |
| latency p95 it answered as fast as its class |
0.20 | 0.57 | 0.549 | 0.110 | −0.086 | −0.004 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.818 | gap to 1.000 = 0.182 · 0.086 short · 0.096 uncertain | 0.818 | −0.086 | −0.096 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.846 liveness
+ 0.200 × 0.549 latency p95
+ 0.200 × 1.000 price stability
= 0.818 → UNRATED: 40 of 30 paid calls weights 2026.09.3 · 40 samples · seed cap_01M1A59X941A0JWTFMFHRQVEWW|2026-08-21T06:48:09.268Z|2026.09.3
Verify it yourself
npx teppi-check https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/contract_proxy_check?chain=base&contract_address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913curl -s https://api.teppi.xyz/v1/trust/cap_01M1A59X941A0JWTFMFHRQVEWW