The Driftproof receipt for hyperframes-registry on Claude Haiku 5.5, from Report 018, dated 2026-11-02, and what it can say.
hyperframes-registry on claude-haiku-5-5
No verdict: delegated skill not tested
These text tasks test the router's written response, not the delegated skill. Report 015 Amendment 1.
The two arms
| arm | mean | spread across cases | cases |
|---|---|---|---|
| with the skill | 0.894 | ± 0.126 | 3 |
| without the skill | 0.283 | ± 0.068 | 3 |
These arm summaries describe the recorded answers. They do not measure the delegated skill. A spread is the sample standard deviation of the per-case means: a descriptive spread with no coverage probability. No verdict is assigned to these text tasks.
This receipt also reads the skill against a same-length placebo. Report 018 shows that reading.
What was verified
receipt_hash verified when this page was built from receipts/report-018/campaign-3/be23053e8d31b8d8e3341ededefdab4521da7e2f717b5e993dd17dd1afceb7a5.json; run.transcripts records retained-local.
Receipt hash: d6a1349519982f7b868d0833c1d7d553796557f5d8e873ae40e11a31d2b2d95d
Check this file yourself
validate shows that this file is unchanged since it was sealed. It does not show who made it or who sealed it.
curl -fsSLO https://raw.githubusercontent.com/driftproofhq/driftproof/main/receipts/report-018/campaign-3/be23053e8d31b8d8e3341ededefdab4521da7e2f717b5e993dd17dd1afceb7a5.json
npx driftproof@0.27.0 validate be23053e8d31b8d8e3341ededefdab4521da7e2f717b5e993dd17dd1afceb7a5.json