corroboration

Is a claim independently corroborated across multiple unrelated sources, or does it trace back to a single origin?

Is a claim independently corroborated across multiple unrelated sources, or does it trace back to a single origin? Groups matches by SOURCE (not category) so a caller sees exactly how many independent outlets/agencies back a claim -- a trust signal no single-source competitor can offer, since it requires already owning many independent sources.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.04 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x1f5f8474…15adae34

URL

https://concordancehq.duckdns.org/tools/corroboration

MCP server on this host: io.github.Vohlsyr/concordance

Seen

first 5 days ago · last 10 hr ago

8 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.532 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 0.468: 0.460 uncertain ? + 0.008 short ? · 0.118 to C

How the composite of 0.532 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	0.233		0.140	0	−0.460
latency p95 it answered as fast as its class	0.20	0.96	0.962		0.192	−0.008	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.532	gap to 1.000 = 0.468 · 0.008 short · 0.460 uncertain	0.532	−0.008	−0.460

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

The multiplication, written out

  0.600 × 0.233   liveness       
+ 0.200 × 0.962   latency p95    
+ 0.200 × 1.000   price stability
= 0.532           → UNRATED: 8 of 30 paid calls      weights 2026.09.6 · 8 samples · seed cap_01M3NV25XRRFTBGSTCWMBY9N9R|2026-09-04T02:59:10.018Z|2026.09.6

Verify it yourselfnpx teppi-check https://concordancehq.duckdns.org/tools/corroborationcurl -s https://api.teppi.xyz/v1/trust/cap_01M3NV25XRRFTBGSTCWMBY9N9R