provenance-verify

Searches the Sigstore Rekor log for entries matching an artefact hash and returns what a provenance claim is actually worth: the log index and inclusion time, the signing identity…

Searches the Sigstore Rekor log for entries matching an artefact hash and returns what a provenance claim is actually worth: the log index and inclusion time, the signing identity from the certificate, and where available the source repository and workflow reference that produced it. Several entries for one hash are all returned, because a rebuild or a second signer is a fact worth seeing rather than collapsing.

UNRATEDDelisted

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?

0x2880edff…771c4e5e

URL

https://sicher.halowerk.com/v1/provenance-verify

Seen

first 34 days ago · last 23 days ago

35 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.2

UN
RATED

0.505 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 0.495: 0.256 uncertain ? + 0.239 short ? · 0.145 to C

How the composite of 0.505 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.77	0.509		0.305	−0.140	−0.155
latency p95 it answered as fast as its class	0.20	0.51	0.000		0.000	−0.099	−0.101
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.505	gap to 1.000 = 0.495 · 0.239 short · 0.256 uncertain	0.505	−0.239	−0.256

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

The multiplication, written out

  0.600 × 0.509   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.505           → UNRATED: 34 of 30 paid calls      weights 2026.09.2 · 34 samples · seed cap_01M1A5QFCR2YEE6772YHET82B1|2026-08-18T21:57:43.949Z|2026.09.2

Verify it yourselfnpx teppi-check https://sicher.halowerk.com/v1/provenance-verifycurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QFCR2YEE6772YHET82B1