From the trend: Mourinho's first Barcelona–Real Madrid clash since his return is Sunday
Will Mbappé score for Real Madrid in Barcelona on Sunday?
Forecast before the AIs
Yes or no? Your forecast first — then we show what the AIs forecast.
Will Mbappé score for Real Madrid in Barcelona on Sunday?
Why this question: Нападающий Реала, играющий в этом Классико на Камп Ноу
We’ll know the answer
Yes — 2 AIsYou are here
🇨🇳StepFun🇨🇳Kimi
StepFun: Twelve goals in ten games against Barcelona; twelve in twelve this season.
No — 5 AIsYou are here
🇨🇳Wenxin🇨🇳Z.ai🇺🇸Claude🇺🇸Gemini🇺🇸ChatGPT
Wenxin: Mbappé often starts wide and without Vinícius may drop deeper making goals less likely
Could not decide (50/50): Meta, Nemotron + Mercury, MiMo
We check it on: espn.com
We’ll know the answer
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How we will check the answer
We check it on: espn.com
The answer is due on Oct 25, 2026.
When the day comes, an AI judge that searches the web checks the answer. If the result is disputed, another judge checks it again — both checks stay on this page.
Exact wording, as the AIs got it (in English)
Will Real Madrid's Kylian Mbappé score at least one goal (own goals do not count) against Barcelona at Camp Nou on Sunday, October 25, 2026? Checked on the ESPN match page after the game. If he does not play, the answer is no.
Fingerprint matches ✓
The question and the AIs’ chances are exactly as they were when we sealed them.
Sealed by us on . Sent to OpenTimestamps, a free public registry that does not belong to us, 33 hours before the answer was due. Fixed for good: nobody, us included, can change it quietly now.
A fingerprint is a short code taken from a record when it is written. Change even one letter and the code is different.
The fingerprint itself, line 160 of the book: dcd8c633d2a21d376e66cd484e2d4e4705cf59073ca58674838696b3562d49f1
Check it yourself, without us
- The book of questions: duels.jsonl
- The list we sent and the registry’s answer: polya1-trends-2026-10-24-123545Z.txt · polya1-trends-2026-10-24-123545Z.txt.ots
- The first 160 lines of the book give the same number as the list:
head -n 160 duels.jsonl | shasum -a 256
- The registry’s answer shows when the list existed:
ots verify polya1-trends-2026-10-24-123545Z.txt.ots
or drop both files on opentimestamps.org.