Audit log

Every state-changing event for polymarket: moderation decisions on community submissions, plus corrections and updates from the news pipeline. URL-based decisions carry three independent witnesses — the original source, an Internet Archive snapshot taken at submission time, and a Solana memo signed by our publicly-disclosed publisher key.

1. #1acceptby adminadmin override

   2026-04-28 20:47:51Z
   Score: 35 → 34 (-1)
   Source:https://www.cftc.gov/PressRoom/PressReleases/8478-22

   Wayback:archived snapshot2026-04-28 21:14:02Z
   anchoranchored

   chain

   ●devnetslot 458,744,797

   sig

   4JeXbBSrqSeU…X47p3j6xcopyexplorer ↗

   hash

   7Smi8vg5g8nC…9NrWBtt8copysha256 → base58

   verifying row…full verify ↗

   canonical bytes (434 B) ▸

   {"actor":"admin","decided_at":"2026-04-28T20:47:51.295Z","decision":"accept","investigation_id":"e79a082e-deb8-4d91-88ce-d964801aaebf","new_score":34,"page_slug":"polymarket","prev_score":35,"reason":null,"score_delta":-1,"sequence_num":1,"submission_content_hash":"JE9m6fhmVTtLNd13yV3MJDqhBAvFPm2kfHNr4F3PofS3","submission_id":"6e00a6a8-b4ca-4872-bdf0-63e3f1d0c636","submission_kind":"url","submission_valence":"incriminating","v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 3bc1b1e5-de83-4301-bc8e-c74bdfc93d4bcopy
2. #2acceptby auto:trusted:stigmergy_qaauto trusted

   2026-04-28 22:33:05Z
   Score: 34 → 25 (-9)
   Source:https://www.sec.gov/news/example-press-release-test

   Wayback:failed
   anchoranchored

   chain

   ●devnetslot 458,759,192

   sig

   66jLKeMaE1nQ…s41nVNmncopyexplorer ↗

   hash

   FHUneb6cctRg…BRJYsNrmcopysha256 → base58

   verifying row…full verify ↗

   canonical bytes (453 B) ▸

   {"actor":"auto:trusted:stigmergy_qa","decided_at":"2026-04-28T22:33:05.148Z","decision":"accept","investigation_id":"e79a082e-deb8-4d91-88ce-d964801aaebf","new_score":25,"page_slug":"polymarket","prev_score":34,"reason":null,"score_delta":-9,"sequence_num":2,"submission_content_hash":"yfPNXjGdLffmVkTuzteyrpXPq6CD6Vy761Fpzxt2SrW","submission_id":"8c8f41c1-faba-4202-a603-ff4b8d9c409c","submission_kind":"url","submission_valence":"incriminating","v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 808e0fbb-c686-4858-8838-55017a6bcfc3copy
3. #3publishby system:backfill

   2026-05-14 06:02:11Z
   Score: ? → ? (no score change)
   anchoranchored

   chain

   ●mainnet-betaslot 419,628,786

   sig

   4N1qcQcywVyf…8zYSeqDHcopyexplorer ↗

   hash

   FZcEKphkZhyF…PN761k2pcopysha256 → base58

   verifying row…full verify ↗

   canonical bytes (11529 B) ▸

   {"actor":"system:backfill","investigation_id":"e79a082e-deb8-4d91-88ce-d964801aaebf","kind":"publish","page_slug":"polymarket","published_at":"2026-05-14T06:02:10.904Z","sequence_num":3,"snapshot":{"content_type":"investigation","entity_name":"polymarket","sections":[{"content":"<cite index=\"11-14,11-15,11-16\">In January 2022, Polymarket was fined $1.4 million by the Commodity Futures Trading Commission (CFTC) for operating an illegal unregistered facility for event-based binary options trading contracts and failing to obtain designation as a designated contract market or registration as a swap execution facility.</cite> <cite index=\"11-18,11-19\">The CFTC found that beginning in June 2020, Polymarket had been operating an illegal facility offering binary options contracts on events such as cryptocurrency prices, COVID-19 case counts, and presidential elections, with over 900 separate event markets since inception.</cite> Following this enforcement action, Polymarket was forced to block U.S. users and operate offshore. <cite index=\"12-20,12-21\">In November 2024, the FBI raided CEO Shayne Coplan's home and seized his phone as part of a Department of Justice investigation into whether Polymarket was allegedly allowing U.S.-based users to make bets on the website.</cite> However, <cite index=\"24-9,24-10\">by July 2025, both the CFTC and DOJ formally ended their investigations without bringing new charges.</cite>","heading":"Regulatory Violations and Enforcement Actions","severity":"high","sources":[{"credibility":1,"name":"CFTC Orders Event-Based Binary Options Markets Operator to Pay $1.4 Million Penalty","type":"regulatory","url":"https://www.cftc.gov/PressRoom/PressReleases/8478-22"},{"credibility":1,"name":"FBI raids Polymarket CEO Shayne Coplan's apartment, seizes phone: Source","type":"news_article","url":"https://www.cnbc.com/2024/11/14/fbi-raids-polymarket-ceos-home-seizing-phone-electronics-.html"}]},{"content":"<cite index=\"41-4,41-5\">In investigations completed by blockchain firms Chaos Labs and Inca Digital, analysts found evidence of wash trading on Polymarket, with Chaos Labs concluding that around one-third of trading volume on the presidential market was likely wash trading.</cite> <cite index=\"42-16,42-17,42-18\">Columbia University researchers analyzing Polymarket activity found that 14% of the platform's 1.26 million wallets showed activity consistent with wash trading, frequently transacting with each other but seldom with other market participants.</cite> <cite index=\"47-10,47-12,47-13\">The Columbia study estimated that roughly 25% of Polymarket's historical volume came from wash trading, with suspected fake trades peaking at nearly 60% of total weekly volume in December 2024, with sports and election markets showing over 90% inauthentic trades in some weeks.</cite> <cite index=\"42-8\">While the authors do not suggest that Polymarket itself was responsible for the wash trading, they point to elements of the exchange's crypto-based structure that make it possible.</cite>","heading":"Market Manipulation and Wash Trading","severity":"high","sources":[{"credibility":2,"name":"Exclusive: Election betting site Polymarket gives Trump a 67% chance of winning but is rife with fake 'wash' trading, researchers say","type":"news_article","url":"https://fortune.com/crypto/2024/10/30/polymarket-trump-election-crypto-wash-trading-researchers/"},{"credibility":2,"name":"Polymarket's Trading Volume May Be 25% Fake, Columbia Study Finds","type":"news_article","url":"https://www.coindesk.com/markets/2025/11/07/polymarket-s-trading-volume-may-be-25-fake-columbia-study-finds"}]},{"content":"<cite index=\"31-15,31-16,31-17\">In April 2026, U.S. special forces soldier Gannon Ken Van Dyke was charged with using classified information about a military operation to capture Venezuelan leader Nicolás Maduro to make more than $400,000 in profit through Polymarket betting.</cite> <cite index=\"33-8,33-9,33-10,33-11\">Van Dyke placed bets on Venezuela-related markets before the operation was publicly announced, and was later arrested and charged after being involved in planning and executing the raid.</cite> <cite index=\"33-20\">Suspicious activities suggestive of insider information being used for Polymarket betting have been observed in multiple contexts including the Russo-Ukrainian war, Israeli military operations, and other geopolitical events.</cite> <cite index=\"32-17,32-18,32-19,32-20,32-21\">According to Polymarket, when they identified suspicious behavior they contacted federal authorities and cooperated with the investigation, stating that 'Insider trading has no place on Polymarket' and that the arrest proved 'the system works.'</cite>","heading":"Insider Trading Incidents","severity":"critical","sources":[{"credibility":1,"name":"U.S. Soldier Charged With Using Classified Information To Profit From Prediction Market Bets","type":"official","url":"https://www.justice.gov/opa/pr/us-soldier-charged-using-classified-information-profit-prediction-market-bets"},{"credibility":1,"name":"Soldier Charged With Insider Trading on Polymarket","type":"news_article","url":"https://time.com/article/2026/04/24/soldier-charged-insider-trading-polymarket-van-dyke-maduro-capture-trump/"}]},{"content":"<cite index=\"51-2,51-5\">In August 2025, Donald Trump Jr. joined Polymarket's advisory board and his venture capital firm 1789 Capital made a strategic investment in the company.</cite> <cite index=\"60-3,60-4,60-5\">Trump Jr. simultaneously serves as a strategic advisor to rival prediction market Kalshi in a paid position, creating what some observers describe as having 'a foot in both camps.'</cite> <cite index=\"55-21\">Coverage repeatedly frames this situation as at least an 'appearance' of conflict, noting that advising two rival platforms in the same sector while investing in one is 'odd' and could create perceived conflicts of interest.</cite> <cite index=\"49-2,49-3,49-4\">This arrangement occurs as prediction markets benefit from President Trump's unpredictability, with Trump Jr. having stakes in Polymarket and advising Kalshi while his father's policies generate betting activity on these platforms.</cite>","heading":"Political Connections and Conflicts of Interest","severity":"medium","sources":[{"credibility":1,"name":"Polymarket Receives Strategic Investment from 1789 Capital and Welcomes Donald Trump Jr. to Advisory Board","type":"official","url":"https://www.prnewswire.com/news-releases/polymarket-receives-strategic-investment-from-1789-capital-and-welcomes-donald-trump-jr-to-advisory-board-302538997.html"},{"credibility":2,"name":"Scoop: Donald Trump Jr.'s VC firm invests in Polymarket","type":"news_article","url":"https://www.axios.com/2025/08/26/trump-jr-vc-fund-polymarket"}]},{"content":"<cite index=\"4-12,4-13\">The company advertises that its markets 'reflect real-time sentiment,' however scholars have challenged that the platform efficiently and accurately aggregates information about outcomes, and a New York Times review found that Polymarket has published hundreds of false and misleading posts.</cite> <cite index=\"4-10\">The controversial nature of betting markets offered by the company, which allow gambling on military strikes and ongoing wars, as well as the ability of individuals with insider information to bet on outcomes, have been described by the Wall Street Journal as a 'legal and ethical grey area.'</cite> <cite index=\"22-4,22-5\">Despite being banned from serving U.S. users, Americans can trade on the platform through virtual private networks (VPNs), with CoinDesk confirming that at least two Americans were able to place trades from U.S. locations ahead of the 2024 election.</cite>","heading":"Platform Operations and Legitimacy Questions","severity":"medium","sources":[{"credibility":2,"name":"Polymarket - Wikipedia","type":"other","url":"https://en.wikipedia.org/wiki/Polymarket"},{"credibility":2,"name":"Polymarket CEO's Home Is Raided by FBI","type":"news_article","url":"https://www.coindesk.com/business/2024/11/13/fbi-reportedly-raids-polymarket-ceos-home"}]}],"sources_used":[{"credibility":1,"name":"CFTC Orders Event-Based Binary Options Markets Operator to Pay $1.4 Million Penalty","type":"regulatory","url":"https://www.cftc.gov/PressRoom/PressReleases/8478-22"},{"credibility":2,"name":"Polymarket - Wikipedia","type":"other","url":"https://en.wikipedia.org/wiki/Polymarket"},{"credibility":1,"name":"FBI raids Polymarket CEO Shayne Coplan's apartment, seizes phone: Source","type":"news_article","url":"https://www.cnbc.com/2024/11/14/fbi-raids-polymarket-ceos-home-seizing-phone-electronics-.html"},{"credibility":1,"name":"U.S. Soldier Charged With Using Classified Information To Profit From Prediction Market Bets","type":"official","url":"https://www.justice.gov/opa/pr/us-soldier-charged-using-classified-information-profit-prediction-market-bets"},{"credibility":2,"name":"Exclusive: Election betting site Polymarket gives Trump a 67% chance of winning but is rife with fake 'wash' trading, researchers say","type":"news_article","url":"https://fortune.com/crypto/2024/10/30/polymarket-trump-election-crypto-wash-trading-researchers/"},{"credibility":2,"name":"Polymarket's Trading Volume May Be 25% Fake, Columbia Study Finds","type":"news_article","url":"https://www.coindesk.com/markets/2025/11/07/polymarket-s-trading-volume-may-be-25-fake-columbia-study-finds"}],"summary":"Polymarket is a cryptocurrency-based prediction market platform that allows users to bet on real-world events. Despite being the world's largest prediction market with accurate election forecasting, the platform faces significant concerns including regulatory violations, market manipulation allegations, and insider trading issues.","timeline":[{"date":"2020-06-01","event":"Polymarket launches and begins operating unregistered prediction markets","source":"CFTC enforcement order","source_url":"https://www.cftc.gov/PressRoom/PressReleases/8478-22"},{"date":"2022-01-01","event":"CFTC fines Polymarket $1.4 million for regulatory violations and forces it to block U.S. users","source":"CFTC Press Release","source_url":"https://www.cftc.gov/PressRoom/PressReleases/8478-22"},{"date":"2024-11-13","event":"FBI raids CEO Shayne Coplan's home and seizes electronic devices","source":"CNBC","source_url":"https://www.cnbc.com/2024/11/14/fbi-raids-polymarket-ceos-home-seizing-phone-electronics-.html"},{"date":"2025-07-15","event":"DOJ and CFTC formally end investigations into Polymarket without bringing new charges","source":"Wikipedia","source_url":"https://en.wikipedia.org/wiki/Polymarket"},{"date":"2025-08-26","event":"Donald Trump Jr. joins advisory board and 1789 Capital makes strategic investment","source":"PR Newswire","source_url":"https://www.prnewswire.com/news-releases/polymarket-receives-strategic-investment-from-1789-capital-and-welcomes-donald-trump-jr-to-advisory-board-302538997.html"},{"date":"2025-11-25","event":"CFTC grants Amended Order of Designation allowing regulated U.S. operations","source":"Bulldog Law","source_url":"https://www.thebulldog.law/polymarket-receives-cftc-approval-to-resume-us-operations-after-years-offshore"},{"date":"2026-04-24","event":"U.S. soldier charged with insider trading for $400,000+ profit on Venezuela operation bets","source":"Department of Justice","source_url":"https://www.justice.gov/opa/pr/us-soldier-charged-using-classified-information-profit-prediction-market-bets"}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 69ece575-09d6-41f1-b513-f313cde00b28copy