Endpoint · otherPOSTsolar.halowerk.com/shadow-simulator

Pure astronomy and geometry on level ground: sun position by the NOAA method, shadow length as object height divided by the tangent of the sun elevation.

Pure astronomy and geometry on level ground: sun position by the NOAA method, shadow length as object height divided by the tangent of the sun elevation. Refraction is only applied to sunrise and sunset. Terrain slope, surrounding buildings, vegetation and diffuse light are not modelled, so a point outside the shadow can still be shaded in reality. Times are UTC.

UNRATEDDelisted

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?

0x2880edff…771c4e5e

URL

https://solar.halowerk.com/shadow-simulator

Seen

first 35 days ago · last 21 days ago

39 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.3

UN
RATED

0.541 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.459: 0.146 uncertain ? + 0.313 short ? · 0.109 to C

How the composite of 0.541 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.81	0.568		0.341	−0.113	−0.146
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.541	gap to 1.000 = 0.459 · 0.313 short · 0.146 uncertain	0.541	−0.313	−0.146

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

The multiplication, written out

  0.600 × 0.568   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.541           → UNRATED: 39 of 30 paid calls      weights 2026.09.3 · 39 samples · seed cap_01M1A5QF9CNZYNZD43F5T53HB2|2026-08-21T02:22:56.904Z|2026.09.3

Verify it yourselfnpx teppi-check https://solar.halowerk.com/shadow-simulatorcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QF9CNZYNZD43F5T53HB2