verify

Cryptographic C2PA / Content-Credentials verdict for a media file.

Cryptographic C2PA / Content-Credentials verdict for a media file. Parses the embedded manifest, verifies the signature chain and asset hash-binding against the C2PA production + Interim trust lists, and returns a go/no-go verdict (authentic-provenance, untrusted-signer, tampered, unsigned) with the distilled signed claims. Cryptographic provenance, not a deepfake detector.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.02 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xf22e558a…8ddff493

URL

https://api.agentstools.dev/provenance/verify

Seen

first 34 days ago · last 18 days ago

45 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Polygon, Arbitrum, Base, Solana

Disagrees with the offer

Score, from free handshakes onlyweights 2026.09.3

UN
RATED

0.714 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.286: 0.086 uncertain ? + 0.200 short ? · 0.086 to B

How the composite of 0.714 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
liveness it answered at all	0.60	1.00	0.857		0.514	0	−0.086
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.714	gap to 1.000 = 0.286 · 0.200 short · 0.086 uncertain	0.714	−0.200	−0.086

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

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.857   liveness       
+ 0.200 × 1.000   price stability
= 0.714           → UNRATED: 43 of 30 paid calls      weights 2026.09.3 · 43 samples · seed cap_01M1A5A35M68404GYE39KE91VW|2026-08-23T01:32:20.766Z|2026.09.3

Verify it yourselfnpx teppi-check https://api.agentstools.dev/provenance/verifycurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5A35M68404GYE39KE91VW