Sources
40 sources, SHA256-hashed for tamper evidence. Tiered by evidentiary weight: PRIMARY (Circle/government), SECONDARY (reputable news), TERTIARY (forensics, social media).
| ID | Title | Tier | Type | Published | URL |
|---|---|---|---|---|---|
CU-SRC-0040 |
USDC Banned Addresses on Ethereum (TheBlock dashboard time series) | SECONDARY | RESEARCH_REPORT | 2026-04-23 | link |
CU-SRC-0021 |
OFAC Specially Designated Nationals (SDN) Advanced XML | PRIMARY | GOV_FILING | 2026-04-17 | link |
CU-SRC-0024 |
Circle 16-wallet USDC freeze (sealed civil case 26-cv-2327) — multi-outlet reporting | SECONDARY | NEWS_ARTICLE | 2026-04-13 | link |
CU-SRC-0039 |
ZachXBT — Welcome to the Circle USDC files | TERTIARY | SOCIAL_MEDIA | 2026-04-03 | link |
CU-SRC-0025 |
r/Buttcoin: Circle Froze 16 Operational Business Wallets Yesterday. For A Civil Case Nobody Can Name. | TERTIARY | FORUM_POST | 2026-03-24 | link |
CU-SRC-0026 |
Treasury Sanctions Facilitators of DPRK IT Worker Fraud Targeting U.S. Businesses (Press Release SB0416) | PRIMARY | GOV_FILING | 2026-03-12 | link |
CU-SRC-0020 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2026-02-17 | link |
CU-SRC-0019 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2026-02-05 | link |
CU-SRC-0031 |
OFAC Sanctions Zedcex and Zedxion (first-ever IRGC-linked digital asset exchange designation) + Zanjani | PRIMARY | GOV_FILING | 2026-01-30 | link |
CU-SRC-0032 |
OFAC Designates Russia-based Bulletproof Hosting Providers (Media Land / Aeza / Hypercore) + Ryan James Wedding Trafficking Network | PRIMARY | GOV_FILING | 2025-11-19 | link |
CU-SRC-0027 |
Treasury Sanctions DPRK Bankers and Institutions Involved in Laundering Cybercrime Proceeds and IT Worker Funds (Press Release SB0302) | PRIMARY | GOV_FILING | 2025-11-04 | link |
CU-SRC-0034 |
U.S. and U.K. Take Largest Action Ever Targeting Cybercriminal Networks in Southeast Asia (SB0278) + DOJ Chen Zhi Indictment | PRIMARY | GOV_FILING | 2025-10-14 | link |
CU-SRC-0035 |
Treasury Targets Financial Network Supporting Iran's Military (SB0248; Derakhshan, Alivand, Iranian Shadow Banking Network) | PRIMARY | GOV_FILING | 2025-09-16 | link |
CU-SRC-0029 |
Treasury Sanctions Cryptocurrency Exchange and Network Enabling Sanctions Evasion and Cyber Criminals (SB0225; Garantex/Grinex) | PRIMARY | GOV_FILING | 2025-08-14 | link |
CU-SRC-0018 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-06-05 | link |
CU-SRC-0017 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-04-09 | link |
CU-SRC-0030 |
Treasury Sanctions Houthi Network Procuring Weapons and Commodities from Russia (SB0068) | PRIMARY | GOV_FILING | 2025-04-02 | link |
CU-SRC-0016 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-03-27 | link |
CU-SRC-0038 |
Treasury Lifts Sanctions on Tornado Cash (Delisting; SB0057) following Fifth Circuit Van Loon v. Treasury ruling | PRIMARY | GOV_FILING | 2025-03-21 | link |
CU-SRC-0015 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-03-19 | link |
CU-SRC-0014 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-03-16 | link |
CU-SRC-0013 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-03-07 | link |
CU-SRC-0012 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-02-24 | link |
CU-SRC-0011 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-02-12 | link |
CU-SRC-0037 |
OFAC Sanctions Zservers for Facilitating LockBit Ransomware Attacks (Feb 11 2025); Circle follow-up Feb 24 2025 | PRIMARY | GOV_FILING | 2025-02-11 | link |
CU-SRC-0010 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-02-09 | link |
CU-SRC-0009 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-02-03 | link |
CU-SRC-0008 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-01-30 | link |
CU-SRC-0007 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-01-19 | link |
CU-SRC-0006 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2025-01-18 | link |
CU-SRC-0033 |
Treasury Expands Sanctions on Sa'id al-Jamal Houthi Financial Network (Dec 2024) — 5 crypto addresses + 12 individuals/entities | PRIMARY | GOV_FILING | 2024-12-19 | link |
CU-SRC-0005 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2024-12-07 | link |
CU-SRC-0004 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2024-12-05 | link |
CU-SRC-0003 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2024-11-18 | link |
CU-SRC-0002 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2024-11-12 | link |
CU-SRC-0001 |
Circle Privacy Policy | PRIMARY | CIRCLE_LEGAL_DOC | 2024-11-03 | link |
CU-SRC-0036 |
Treasury Sanctions Hamas-Aligned Terrorist Fundraising Network (Gaza Now; JY2213; first joint OFAC+OFSI crypto designation) | PRIMARY | GOV_FILING | 2024-03-27 | link |
CU-SRC-0028 |
Treasury OFAC: Tornado Cash Redesignation (2022-11-08) + Darknet Fentanyl Suppliers (2022-11-09) — Press Release JY1089 | PRIMARY | GOV_FILING | 2022-11-09 | link |
CU-SRC-0023 |
Circle blacklists all Tornado Cash ETH addresses effectively freezing USDC | SECONDARY | NEWS_ARTICLE | 2022-08-08 | link |
CU-SRC-0022 |
Centre appears to have blacklisted an address holding USDC for the first time | SECONDARY | NEWS_ARTICLE | 2020-07-08 | link |
Tier distribution
- PRIMARY 34 — Circle or US/foreign government primary documents
- SECONDARY 4 — Reputable news organizations and court-filed third-party documents
- TERTIARY 2 — Forensics-firm reports, social media, research notes