Endpoint · evidencePOSTx402.shizu.me /notarize
Prove a piece of data existed at a point in time.
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Prove a piece of data existed at a point in time. POST {data} returns its sha256, a recorded timestamp, and an HMAC receipt; GET ?hash= tells you whether and when that hash was first notarized. An agent can hash data but cannot self-certify WHEN it existed to a third party — this is that proof.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.002 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
Seen
first 34 days ago · last 34 days ago
14 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.08.1
UN
RATED
RATED
0.662 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.338: 0.138 uncertain ? + 0.200 short ? · 0.138 to B
| 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 | 0.771 | 0.462 | 0 | −0.138 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.662 | gap to 1.000 = 0.338 · 0.200 short · 0.138 uncertain | 0.662 | −0.200 | −0.138 |
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 × 0.771 liveness
+ 0.200 × 1.000 price stability
= 0.662 → UNRATED: 13 of 30 paid calls weights 2026.08.1 · 13 samples · seed cap_01M1A5ADJKFA2T96TNRMXGPYER|2026-08-07T21:34:26.750Z|2026.08.1
Verify it yourself
npx teppi-check https://x402.shizu.me/notarizecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5ADJKFA2T96TNRMXGPYER