Verify a decision
Every moderation decision on AVOID.NET is anchored to the Solana blockchain. You don't have to trust us — you can verify cryptographically that we committed to a verdict at a specific moment and have not rewritten it.
How verification works
- We commit. When a moderator accepts/rejects a submission, we serialize the decision into deterministic UTF-8 bytes (
payload_canonical_string), hash it with SHA-256, encode the digest as base58, and write it to Solana inside an SPL Memo v2 transaction. - We store the bytes. The exact bytes we hashed are stored alongside the decision in our database. Anyone can read them and recompute the hash in any language.
- You compare three values. Database hash, your independently-recomputed hash, and the hash inside the on-chain memo. If all three match, the decision is authentic and timestamped.
The on-chain memo format is
AVOID.NET|v1|h:<b58-sha256>|d:<id>|t:<iso>Find a signature on any investigation page's decision log, or run python -m src.verify_decision --signature <sig> for a CLI check.
Decision
publish · Radoslaw Piesiewicz
- Sequence
- #1
- Score
- →
- Cluster
- mainnet-beta
- Slot
- 443695792
- Off-chain at
- 2026-09-02T12:22:47.287Z
- Anchored at
- —
- Block time
- —
Independent verification
- 1. Database (off-chain)
- qxjcMah26iPy3eoEkJkVe6nn41k2cJi25jAy5oFt6nn
- 2. Recomputed (your browser)
- computing…
- 3. On-chain (Solana memo)
- fetching…
Canonical bytes hashed (17781 chars)
{"actor":"system:backfill","investigation_id":"74b70aed-f4fc-4e91-962b-084fe5f64175","kind":"publish","page_slug":"radoslaw-piesiewicz","published_at":"2026-09-02T12:22:47.239Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"Radoslaw Piesiewicz","sections":[{"content":"Radoslaw Piesiewicz holds a law and administration degree from the University of Warsaw and completed postgraduate studies in project management and MBA coursework. His sports administration career includes serving as vice president of the Polish Volleyball Federation (2016-2017), president of the Polish Basketball Federation (2018-2022), and business advisor to FIBA Europe's Basketball Champions League. He was elected the 13th president of the Polish Olympic Committee in 2023. Polish media have described him as politically associated with the former Law and Justice (PiS) government, whose backing he received during his PKOl election campaign.","heading":"Background and Career","severity":"low","sources":[{"credibility":2,"name":"Radoslaw Piesiewicz elected PKOl president","type":"official","url":"https://olimpijski.pl/en/radoslaw-piesiewicz-has-been-elected-the-president-of-the-polish-olympic-committee/"},{"credibility":2,"name":"Cryptopolitan: Polish Olympic chief detained in Zondacrypto bribery probe","type":"news_article","url":"https://www.cryptopolitan.com/polish-olympic-chief-detained-zondacrypto/"}]},{"content":"On October 22, 2025, Piesiewicz signed a contract in Monaco making Zondacrypto the general sponsor of Poland's Olympic committee, covering the period through 2028. Under the agreement, medal winners at the 2026 Winter Olympics in Milan-Cortina were to receive cryptocurrency bonuses. The exchange's branding was installed on PKOl facilities, including a neon sign placed on a building that previously bore the name of Pope John Paul II. The sign was removed in April 2026 after the exchange halted withdrawals and effectively ceased operations. Private sponsors subsequently covered approximately PLN 1.1 million in athlete bonuses that Zondacrypto had failed to pay. Prosecutors allege that the sponsorship agreement conferred institutional legitimacy on the exchange during a period when it was allegedly mismanaging customer funds, and that Piesiewicz allegedly received financial benefits in exchange for facilitating the deal.","heading":"Zondacrypto Sponsorship Deal","severity":"high","sources":[{"credibility":2,"name":"CryptoTimes: Polish Olympic Chief Detained in $80M Crypto Exchange Collapse","type":"news_article","url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"credibility":2,"name":"Euronews: Polish Olympic chief arrested in crypto-linked graft probe","type":"news_article","url":"https://www.euronews.com/my-europe/2026/08/27/polish-olympic-chief-radoslaw-piesiewicz-arrested-in-crypto-linked-graft-probe-officials-s"},{"credibility":2,"name":"The Block: Polish Olympic Committee president detained in Zondacrypto bribery probe","type":"news_article","url":"https://www.theblock.co/news/regulation/2026-08-27-polish-olympic-committee-president-detained-in-zondacrypto-bribery-probe-412961"}]},{"content":"Piesiewicz was detained on August 27, 2026, by Poland's Central Bureau for Combating Cybercrime. Poland's justice minister and prosecutor general announced the detention publicly the same day. Prosecutors are investigating two principal categories of alleged conduct. First, investigators suspect Piesiewicz accepted gifts from Zondacrypto's then-chief executive Przemyslaw Kral in exchange for signing the sponsorship contract and for allegedly lobbying on the exchange's behalf with UOKiK, Poland's consumer protection authority, and potentially with former Prime Minister Mateusz Morawiecki. Both UOKiK president Tomasz Chrostny and Morawiecki deny any involvement. The alleged gifts reportedly include a Patek Philippe Calatrava watch valued at approximately EUR 40,000 (roughly PLN 172,000), trips to Monaco and Bergamo, hotel stays, and match tickets, with total alleged benefits estimated at between PLN 190,000 and PLN 216,000. Piesiewicz disputes this account, stating he purchased the watch himself in cash installments in Swiss francs and holds a certificate of origin. Second, prosecutors allege Piesiewicz received advance information enabling him to withdraw his own funds from Zondacrypto while ordinary customers remained unable to access theirs — a charge sometimes described as preferential creditor treatment. Piesiewicz has not been convicted. As of the date of this report, formal charges had not been publicly filed. An overnight court hearing in Katowice ending on August 29 resulted in a judicial order for three months of pre-trial detention.","heading":"Arrest and Alleged Charges","severity":"critical","sources":[{"credibility":1,"name":"CoinDesk: Polish Olympic chief arrested as prosecutors probe suspected crypto-linked bribe","type":"news_article","url":"https://www.coindesk.com/business/2026/08/27/polish-olympic-chief-arrested-as-prosecutors-probe-suspected-crypto-linked-bribe"},{"credibility":2,"name":"CryptoTimes: Polish Olympic Chief Detained in $80M Crypto Exchange Collapse","type":"news_article","url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"credibility":2,"name":"Euronews: Polish Olympic chief arrested in crypto-linked graft probe","type":"news_article","url":"https://www.euronews.com/my-europe/2026/08/27/polish-olympic-chief-radoslaw-piesiewicz-arrested-in-crypto-linked-graft-probe-officials-s"},{"credibility":3,"name":"PhotoNews Pakistan: Radoslaw Piesiewicz Held 3 Months in Zondacrypto Probe","type":"news_article","url":"https://photonews.com.pk/radoslaw-piesiewicz-held-3-months-in-zondacrypto-probe/"}]},{"content":"Zondacrypto (operated by BB Trade Estonia OÜ, registered in Estonia) was Poland's largest cryptocurrency exchange prior to its collapse. The exchange halted withdrawals in April 2026 and went offline on April 23, 2026. Approximately 30,000 users filed complaints, with Polish prosecutors estimating minimum client losses of PLN 350 million (approximately EUR 81 million). CEO Przemyslaw Kral subsequently disclosed that the exchange had lost access to a cold wallet containing approximately 4,500 bitcoin — access that Kral attributed to the 2022 disappearance of founder Sylwester Suszek, who had held the private key. Critics and legal analysts have disputed this account, noting the wallet in question appears dormant since 2016. Estonia's Financial Intelligence Unit suspended and then revoked the exchange's operating license on June 29, 2026. On July 6, 2026, Harju County Court accepted a bankruptcy petition filed by law firm Magnusson. Kral is reported to be cooperating with prosecutors in exchange for a lighter sentence. Interior Minister Marcin Kierwinski has publicly described Zondacrypto as 'in reality a Ponzi scheme'; this is a prosecutorial characterization, not a court finding. The Piesiewicz investigation was formally merged with the investigation into Suszek's disappearance on July 30, 2026.","heading":"Zondacrypto Collapse Context","severity":"high","sources":[{"credibility":2,"name":"Magnusson Law: What Happened to Zondacrypto","type":"other","url":"https://www.magnussonlaw.com/ee/zondacrypto-collapse/"},{"credibility":2,"name":"Euronews: Polish Olympic chief arrested in crypto-linked graft probe","type":"news_article","url":"https://www.euronews.com/my-europe/2026/08/27/polish-olympic-chief-radoslaw-piesiewicz-arrested-in-crypto-linked-graft-probe-officials-s"},{"credibility":2,"name":"Disruption Banking: Zondacrypto's Shocking Collapse","type":"news_article","url":"https://www.disruptionbanking.com/2026/05/14/zondacryptos-shocking-collapse-how-did-polands-top-crypto-exchange-lose-99-7-of-its-bitcoin/"},{"credibility":2,"name":"Kancelaria Skarbiec: Zondacrypto Bankruptcy Declared","type":"other","url":"https://kancelaria-skarbiec.pl/en/zondacrypto-bankruptcy-declared/"}]},{"content":"Poland's Sports Minister Jakub Rudnicki stated that 'such a person should never have been president' and that 'Piesiewicz has discredited Polish Olympics.' The investigation was launched in April 2026, and the majority of Polish sports federations called for Piesiewicz's resignation at that time, months before his arrest. Poland's justice minister and prosecutor general participated in announcing the detention publicly, which Polish media noted carried political overtones given Piesiewicz's reported alignment with the opposition PiS party. Piesiewicz is described as 'considered close to Poland's nationalist right' and his PKOl election received PiS backing. The case is active and further charges or additional individuals may be implicated as the investigation broadens.","heading":"Political and Institutional Response","severity":"medium","sources":[{"credibility":2,"name":"Euronews: Polish Olympic chief arrested in crypto-linked graft probe","type":"news_article","url":"https://www.euronews.com/my-europe/2026/08/27/polish-olympic-chief-radoslaw-piesiewicz-arrested-in-crypto-linked-graft-probe-officials-s"},{"credibility":2,"name":"Notes From Poland: Polish Olympic Committee chief detained over links to collapsed crypto firm","type":"news_article","url":"https://notesfrompoland.com/2026/08/27/polish-olympic-committee-chief-detained-over-links-to-collapsed-crypto-firm/"},{"credibility":1,"name":"CoinDesk: Polish Olympic chief arrested as prosecutors probe suspected crypto-linked bribe","type":"news_article","url":"https://www.coindesk.com/business/2026/08/27/polish-olympic-chief-arrested-as-prosecutors-probe-suspected-crypto-linked-bribe"}]}],"sources_used":[{"credibility":1,"name":"CoinDesk: Polish Olympic chief arrested as prosecutors probe suspected crypto-linked bribe","type":"news_article","url":"https://www.coindesk.com/business/2026/08/27/polish-olympic-chief-arrested-as-prosecutors-probe-suspected-crypto-linked-bribe"},{"credibility":2,"name":"The Block: Polish Olympic Committee president detained in Zondacrypto bribery probe","type":"news_article","url":"https://www.theblock.co/news/regulation/2026-08-27-polish-olympic-committee-president-detained-in-zondacrypto-bribery-probe-412961"},{"credibility":2,"name":"Euronews: Polish Olympic chief arrested in crypto-linked graft probe","type":"news_article","url":"https://www.euronews.com/my-europe/2026/08/27/polish-olympic-chief-radoslaw-piesiewicz-arrested-in-crypto-linked-graft-probe-officials-s"},{"credibility":2,"name":"Notes From Poland: Polish Olympic Committee chief detained over links to collapsed crypto firm","type":"news_article","url":"https://notesfrompoland.com/2026/08/27/polish-olympic-committee-chief-detained-over-links-to-collapsed-crypto-firm/"},{"credibility":2,"name":"CryptoTimes: Polish Olympic Chief Detained in $80M Crypto Exchange Collapse","type":"news_article","url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"credibility":2,"name":"Cryptopolitan: Polish Olympic chief detained in Zondacrypto bribery probe","type":"news_article","url":"https://www.cryptopolitan.com/polish-olympic-chief-detained-zondacrypto/"},{"credibility":2,"name":"Crypto Briefing: Polish Olympic chief arrested in crypto graft probe tied to Zondacrypto collapse","type":"news_article","url":"https://cryptobriefing.com/polish-olympic-chief-arrested-crypto-graft/"},{"credibility":2,"name":"Disruption Banking: Zondacrypto's Shocking Collapse","type":"news_article","url":"https://www.disruptionbanking.com/2026/05/14/zondacryptos-shocking-collapse-how-did-polands-top-crypto-exchange-lose-99-7-of-its-bitcoin/"},{"credibility":2,"name":"Magnusson Law: What Happened to Zondacrypto and How to Join the Estonian Bankruptcy Proceedings","type":"other","url":"https://www.magnussonlaw.com/ee/zondacrypto-collapse/"},{"credibility":2,"name":"Kancelaria Skarbiec: Zondacrypto Bankruptcy Declared","type":"other","url":"https://kancelaria-skarbiec.pl/en/zondacrypto-bankruptcy-declared/"},{"credibility":2,"name":"Polish Olympic Committee: Radoslaw Piesiewicz elected president","type":"official","url":"https://olimpijski.pl/en/radoslaw-piesiewicz-has-been-elected-the-president-of-the-polish-olympic-committee/"},{"credibility":3,"name":"PhotoNews Pakistan: Radoslaw Piesiewicz Held 3 Months in Zondacrypto Probe","type":"news_article","url":"https://photonews.com.pk/radoslaw-piesiewicz-held-3-months-in-zondacrypto-probe/"},{"credibility":2,"name":"Bitcoin.com News: Polish Olympic Chief Detained in Crypto Fraud Probe","type":"news_article","url":"https://news.bitcoin.com/crypto-news/polish-olympic-chief-detained-in-crypto-fraud-probe/"},{"credibility":2,"name":"Kancelaria Skarbiec: Sylwester Suszek — the missing Zondacrypto founder","type":"other","url":"https://kancelaria-skarbiec.pl/en/sylwester-suszek/"}],"summary":"Radoslaw Piesiewicz (born February 20, 1981) is a Polish sports administrator who has served as president of the Polish Olympic Committee (PKOl) since 2023. On August 27, 2026, he was detained by Poland's Central Bureau for Combating Cybercrime in connection with a criminal investigation into the collapsed cryptocurrency exchange Zondacrypto. A Polish court subsequently ordered him held for three months pending the investigation; as of the date of this report, formal charges had not been publicly filed and no conviction has been entered.","timeline":[{"date":"2023-01-01","event":"Radoslaw Piesiewicz elected 13th president of the Polish Olympic Committee (PKOl), with reported backing from the Law and Justice (PiS) government.","source":"Polish Olympic Committee official site","source_url":"https://olimpijski.pl/en/radoslaw-piesiewicz-has-been-elected-the-president-of-the-polish-olympic-committee/"},{"date":"2025-09-01","event":"Estonia's UOKiK (Poland's consumer protection authority) referred the Zondacrypto file to law enforcement after its own review.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"date":"2025-10-22","event":"Piesiewicz signed the Zondacrypto general sponsorship contract in Monaco. Zondacrypto became PKOl's primary sponsor through 2028, with cryptocurrency bonuses promised to medal-winning athletes.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"date":"2026-02-01","event":"Winter Olympics in Milan-Cortina; Zondacrypto branding present, including a neon sign on a PKOl building. Cryptocurrency bonuses for medal winners were never paid.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"date":"2026-04-01","event":"Zondacrypto begins halting customer withdrawals. Polish prosecutors open a criminal investigation into possible fraud following thousands of complaints.","source":"Disruption Banking","source_url":"https://www.disruptionbanking.com/2026/05/14/zondacryptos-shocking-collapse-how-did-polands-top-crypto-exchange-lose-99-7-of-its-bitcoin/"},{"date":"2026-04-23","event":"Zondacrypto's website goes offline. Exchange effectively ceases operations. PKOl removes Zondacrypto branding from its facilities.","source":"Magnusson Law","source_url":"https://www.magnussonlaw.com/ee/zondacrypto-collapse/"},{"date":"2026-04-01","event":"Polish sports federations call for Piesiewicz to resign following the launch of the investigation. Piesiewicz declines to step down.","source":"Notes From Poland","source_url":"https://notesfrompoland.com/2026/08/27/polish-olympic-committee-chief-detained-over-links-to-collapsed-crypto-firm/"},{"date":"2026-06-01","event":"Private sponsors cover PLN 1.1 million in cryptocurrency bonuses that Zondacrypto had failed to pay to Polish Olympic medal winners.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"date":"2026-06-29","event":"Estonia's Financial Intelligence Unit revokes Zondacrypto's (BB Trade Estonia OÜ) operating license.","source":"Magnusson Law","source_url":"https://www.magnussonlaw.com/ee/zondacrypto-collapse/"},{"date":"2026-07-06","event":"Harju County Court (Estonia) accepts the bankruptcy petition for BB Trade Estonia OÜ (Zondacrypto), opening formal insolvency proceedings.","source":"Magnusson Law","source_url":"https://www.magnussonlaw.com/ee/zondacrypto-collapse/"},{"date":"2026-07-30","event":"The Piesiewicz investigation is formally merged with the investigation into the disappearance of Zondacrypto founder Sylwester Suszek.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/08/27/polish-olympic-chief-detained-in-80m-crypto-exchange-collapse/"},{"date":"2026-08-27","event":"Piesiewicz detained by Poland's Central Bureau for Combating Cybercrime. Poland's justice minister and prosecutor general announce the arrest publicly. Investigators allege he received gifts valued at PLN 190,000-216,000 and preferentially withdrew his own funds from the exchange.","source":"CoinDesk","source_url":"https://www.coindesk.com/business/2026/08/27/polish-olympic-chief-arrested-as-prosecutors-probe-suspected-crypto-linked-bribe"},{"date":"2026-08-29","event":"Following an overnight hearing in Katowice, a Polish court orders Piesiewicz held for three months pending the investigation. No formal charges have been publicly filed as of this date.","source":"PhotoNews Pakistan / Cryptopolitan","source_url":"https://photonews.com.pk/radoslaw-piesiewicz-held-3-months-in-zondacrypto-probe/"}]},"v":1}