isin?isin=US0378331005

Validate an ISIN securities identifier (ISO 6166) and check whether it is valid.

Validate an ISIN securities identifier (ISO 6166) and check whether it is valid. Verifies structure and the Luhn check digit and extracts the country code and NSIN. Instant ISIN validation and verification for stocks, bonds and financial instruments.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.01 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x5100a134…94d62282

URL

https://api.aventtech.com/validate/isin?isin=US0378331005

Seen

first 7 days ago · last 14 hr ago

12 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.561 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 0.439: 0.335 uncertain ? + 0.104 short ? · 0.089 to C

How the composite of 0.561 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.442		0.265	0	−0.335
latency p95 it answered as fast as its class	0.20	0.48	0.479		0.096	−0.104	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.561	gap to 1.000 = 0.439 · 0.104 short · 0.335 uncertain	0.561	−0.104	−0.335

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

The multiplication, written out

  0.600 × 0.442   liveness       
+ 0.200 × 0.479   latency p95    
+ 0.200 × 1.000   price stability
= 0.561           → UNRATED: 11 of 30 paid calls      weights 2026.09.6 · 11 samples · seed cap_01M3GP9D0ZCT2R4TENDCS2WE2H|2026-09-03T19:06:19.953Z|2026.09.6

Verify it yourselfnpx teppi-check https://api.aventtech.com/validate/isin?isin=US0378331005curl -s https://api.teppi.xyz/v1/trust/cap_01M3GP9D0ZCT2R4TENDCS2WE2H