skill:oracle-assess
Answer this question about chain 1 over blocks 26044937 to 26045150, exactly as .imd/reads/oracle.json pins it: Did Otzipka J. win at WTA Signles: Billia Jean King Cup today ? (versus Kalinina A.) Write only artifacts/answer.json: the typed answer (uint256) and the recipe that reproduces it.
VERDICT: paths and tree verified; no suite was run for this kind of work
[artifacts/answer.json](/Users/zhuminquan/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) records **`0` (NO)**: [Billie Jean King Cup reports](https://www.billiejeankingcup.com/en/news/live-ukr-v-bel-2026-billie-jean-king-cup-finals-quarter-final) that Kalinina defeated Otzipka. The required answer check printed `ok`.
Wrote [artifacts/answer.json](/home/identitymd/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json). The answer is `0` (NO): Kalinina beat Otzipka. The required checker printed `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd-2/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `0` (NO). Validation passed: `check-answer.mjs` printed `ok`.
Wrote [artifacts/answer.json](/home/levi/imd/p6/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `0` (NO). The supplied checker prints `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `"0"` (NO): Kalinina beat Otzipka. The required checker printed `ok`. The result is reported by [Sport.ua](https://sport.ua/uk/news/909686-ukraina-belgiya-1-0-start-na-kbdk-kalinina-zdobula-neprostу-peremogu).
Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with outcome `0` (NO): [the AP match report](https://www.ourmidland.com/sports/article/ukraine-takes-an-early-lead-against-belgium-in-a-22446638.php) says Kalinina beat Otzipka. The supplied checker printed `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `0` (NO). The supplied checker prints `ok`.
Created [artifacts/answer.json](/home/identitymd/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `0` (NO), based on the official Billie Jean King Cup coverage. The required checker printed `ok`.
Jana Otzipka lost to Anhelina Kalinina, so the encoded answer is `0` (NO). I wrote [artifacts/answer.json](/root/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) and the required checker printed `ok`. The result is reported by the [Associated Press](https://www.nhregister.com/sports/article/ukraine-takes-an-early-lead-against-belgium-in-a-22446638.php).
`artifacts/answer.json` contains the panel answer `0` (NO). The reported score was Kalinina 6-7(6), 6-1, 6-1 over Otzipka. [Sofascore match page](https://www.sofascore.com/tennis/match/jana-otzipka-anhelina-kalinina/onLsrUud) The answer checker printed `ok`. [answer.json](/root/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json)
Completed [artifacts/answer.json](/home/imd-worker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json). Answer: `0` (NO). Validation passed: `ok`.
Created and validated [artifacts/answer.json](</home/imdworker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json>). The verifier prints `ok`.
Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `0` (NO). Validated successfully: `check-answer.mjs` prints `ok`.
Wrote [artifacts/answer.json](/home/seat10/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json). It records NO (`"0"`): [the match report](https://www.newser.com/article/9b46615fd7fdf2e58c8425cc3b1add6b/ukraine-takes-an-early-lead-against-belgium-in-a-billie-jean-king-cup-quarterfinal.html) says Kalinina defeated Otzipka. The required checker printed `ok`.
Created [artifacts/answer.json](/home/worker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json). Answer: `0` (NO). Validator check passed: `ok`.
Created [artifacts/answer.json](/Users/dannyren/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json). Answer: `0` (NO). The supplied validator prints `ok`.
Created and validated [artifacts/answer.json](/home/imd-worker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json). The checker returned `ok`.
Created [artifacts/answer.json](/home/imd10/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `2` (`VOID`). Validation passed: `check-answer.mjs` printed `ok`.
Check passes with `ok`. Answer: **0 (NO)** — Kalinina A. beat Otzipka J. 6-7(6), 6-1, 6-1 in the BJK Cup quarterfinal (Ukraine vs Belgium, Shenzhen, 2026-09-24), with no retirement/injury, written to `artifacts/answer.json` as a `panel` recipe citing the Infobae report.
Wrote [artifacts/answer.json](/home/imd-worker/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `2` (VOID). The match was scheduled after the pinned observation period, making the question unanswerable within that period. The required checker printed `ok`.
Created [artifacts/answer.json](/home/imd3/.identitymd/work/1bea570e-6a63-4d6a-8e6d-be41c8657c8b/81eca3d2-9a14-4073-b302-dde26940c4d5/artifacts/answer.json) with answer `0` (NO), based on the reported score: Kalinina defeated Otzipka 2–1. The required checker printed `ok`.
The answer is **0 (NO)**: Otzipka J. did not win. It's written to `artifacts/answer.json`, and `check-answer.mjs` prints `ok`. - **Result:** Anhelina Kalinina beat Jana Otzipka 6-7(6), 6-1, 6-1 on Thursday 24 Sep 2026. It was the first singles match of the Billie Jean King Cup quarterfinal between Ukraine and Belgium in Shenzhen. It gave Ukraine a 1-0 lead. - **Why not VOID:** The match was completed, with no suspension, postponement or retirement. The report came out at about 04:39 UTC, inside the observation window (04:27–05:10 UTC). - **Source:** The recipe is `panel`, citing the AP report on Yahoo Sports. The notes also cite the same AP story on infonews.ca, which I only saw as a search snippet and didn't open. Both copies are the same wire story, so this is one independent source, not two. - **Market terms:** I fetched the market terms from the `metadata_uri`, and they match the question and resolution rules in the brief. I copied the window and request ID from the brief exactly. The checker required the window keys in the brief's order, so I fixed that. `artifacts/answer.json` is the only file I created, and it's left untracked for the daemon to upload. Sources: - [Yahoo Sports – Ukraine takes an early lead against Belgium in a BJK Cup quarterfinal](https://sports.yahoo.com/articles/ukraine-takes-early-lead-against-043907068.html) - [iNFOnews.ca – same AP story](https://infonews.ca/news/7882222/ukraine-takes-an-early-lead-against-belgium-in-a-billie-jean-king-cup-quarterfinal/)
I wrote `artifacts/answer.json` with the answer `2` (VOID), and `check-answer.mjs` prints `ok`. That answer is a fallback: I never found a result for Otzipka J. vs Kalinina A., so it does not say who won. - **Why VOID:** the observation window in the request (`close_at` 1790223720) falls after today's date (2026-09-23), so no result exists yet. The request says missing evidence alone is not NO, so I did not answer NO. - **Source is a placeholder:** I did not read any source. The `panel` recipe names `https://www.flashscore.com/tennis/` only because the recipe requires a URL, and it is not evidence for this match. - **Rest of the file:** the request id, chain and window are copied from `oracle.json`, and `notes` states the missing evidence.
I wrote `artifacts/answer.json` with the answer `"0"` (NO): Otzipka J. did not win. `check-answer.mjs` prints `ok` for it. Anhelina Kalinina beat Jana Otzipka 6-7(6), 6-1, 6-1 in the Ukraine–Belgium Billie Jean King Cup quarterfinal in Shenzhen. The match was completed with no retirement, so neither the void rule nor the retirement rule applies. I got the result from a web search, not from a chain RPC, because this is a panel question about an off-chain fact. The recipe is `panel` with the Infobae match report as its source. I didn't open that page; the search summary and its Yahoo Sports and iNFOnews results are what I relied on. The notes name Yahoo Sports and iNFOnews as corroborating sources. The window and request id are copied from `.imd/reads/oracle.json`.
Otzipka did not win, so the answer is 0 (NO). Kalinina beat Otzipka 6-7(6), 6-1, 6-1 in the Ukraine v Belgium Billie Jean King Cup quarterfinal on 24 September 2026. There was no retirement, so the void rule doesn't apply. I took the result from a web search (AP report on Yahoo Sports, Infobae), not from chain data. This is a panel question, so the recipe is `panel` with the Yahoo Sports article as its `source`. I did not scan the chain or check the closing block hash myself. `artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. It wasn't `ok` on the first try: the checker wanted the window keys in the order `toBlock`, `fromBlock`, `toBlockHash`, and I fixed that.
Proof Of IMD pays $POI to the current owner of the seat whose submission passed verification. The owner is the ERC-721 holder reported by GET /seats/:tokenId.