Audit log

Every state-changing event for MANTRA Chain Upstream Exploit (August 2026): moderation decisions on community submissions, plus corrections and updates from the news pipeline. URL-based decisions are designed to carry three independent witnesses — the original source, an Internet Archive snapshot, and a Solana memo signed by our publicly-disclosed publisher key. Archive coverage is still being backfilled, so each decision below reports its own snapshot status rather than assuming one exists.

1. #1publishby system:backfill

   2026-08-27 17:08:20Z
   Score: ? → ? (no score change)
   anchorpending

   chain

   ●—

   hash

   9gMRHYj5ZbWn…gJv4wxvecopysha256 → base58

   verifying row…

   canonical bytes (27288 B) ▸

   {"actor":"system:backfill","investigation_id":"4926d111-a9da-4f2e-b0c7-00525f264ae3","kind":"publish","page_slug":"mantra-chain-upstream-exploit-august-2026","published_at":"2026-08-27T17:08:20.339Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"MANTRA Chain Upstream Exploit (August 2026)","sections":[{"content":"MANTRA Chain halted all block production late on August 20, 2026, after the team detected an active attacker exploiting a vulnerability in an upstream software dependency. The halt froze all on-chain activity including user transactions, validator endpoints, bridge operations via the MANTRA Migrate bridge, IBC relay services, and exchange deposits and withdrawals. MEXC exchange separately suspended MANTRA deposits and withdrawals in response. The network's last processed block occurred at approximately 11:13 p.m. UTC on August 20. Block production resumed at approximately 05:30 UTC on August 22, 2026, after a coordinated validator upgrade to version 8.4.0, making the total downtime roughly 30 hours. MANTRA has stated no user, exchange, or partner funds were directly affected, though it has not disclosed full details of activity in the two internal wallets it acknowledged were affected.","heading":"Incident Overview","severity":"high","sources":[{"credibility":1,"name":"MANTRA token plunges 18% to record low as blockchain halts after exploit — CoinDesk","type":"news_article","url":"https://www.coindesk.com/tech/2026/08/21/mantra-token-plunges-18-to-record-low-as-blockchain-halts-after-exploit"},{"credibility":2,"name":"MANTRA Chain Halts Network Operations After Detecting Upstream Vulnerability — Metaverse Post","type":"news_article","url":"https://mpost.io/mantra-chain-halts-network-operations-after-detecting-upstream-vulnerability-freezing-all-transactions-and-withdrawals/"},{"credibility":2,"name":"MANTRA Chain Halts Network After Unidentified Incident — The Crypto Times","type":"news_article","url":"https://www.cryptotimes.io/2026/08/21/mantra-chain-halts-network-unidentified-incident/"},{"credibility":2,"name":"MANTRA Chain Restores Operations Following 30-Hour Cosmos-EVM Vulnerability Shutdown — Blockonomi","type":"news_article","url":"https://blockonomi.com/mantra-chain-restores-operations-following-30-hour-cosmos-evm-vulnerability-shutdown"},{"credibility":2,"name":"MANTRA Chain resumes blocks after Cosmos-EVM fix — crypto.news","type":"news_article","url":"https://crypto.news/mantra-chain-resumes-blocks-after-cosmos-evm-fix/"}]},{"content":"The underlying flaw is documented as ASA-2026-002 (CVE-2026-ASA002), a critical-severity vulnerability in the Cosmos EVM module maintained by Cosmos Labs. The vulnerability resided in the ICS20 precompile, a component that allows EVM smart contracts to initiate cross-chain token transfers via the Inter-Blockchain Communication (IBC) protocol. The root cause was incorrect state handling during nested EVM execution paths: state updates performed during recursive calls were not correctly reflected in the outer execution context, enabling an attacker to reuse the same token balance multiple times within a single transaction. A fixed version, v0.6.0, was released by Cosmos Labs in March 2026, but Cosmos Labs did not issue advance private notice to downstream chains running the vulnerable code before pushing the fix publicly. KiiChain's post-mortem stated: 'Publishing a security fix in the open, before the chains running that code have been told privately and given time to patch, hands the vulnerability to anyone reading the commit.' Security researchers publicly characterized the disclosure approach as negligent. Cosmos Labs follows what has been described as a 'silent patch model' but its dissemination of the critical update proved insufficient to prevent downstream exploitation. Fifteen chains were identified as running vulnerable code; six had the ICS20 precompile disabled and were unaffected; remaining chains implemented mitigations before exploitation; and at least three chains experienced active exploitation.","heading":"Vulnerability: ASA-2026-002 and the Cosmos EVM ICS20 Precompile","severity":"critical","sources":[{"credibility":1,"name":"ASA-2026-002 Security Advisory — cosmos/evm GitHub","type":"official","url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"credibility":2,"name":"Cosmos Labs Urges EVM Chains To Halt As Shared Bug Drains Three Networks — The Defiant","type":"news_article","url":"https://thedefiant.io/news/blockchains/cosmos-labs-urges-evm-chains-halt-shared-bug-drains-three-networks"},{"credibility":2,"name":"Cosmos Labs under fire over disclosure of bug affecting four blockchains — Protos","type":"news_article","url":"https://protos.com/cosmos-labs-under-fire-over-disclosure-of-bug-affecting-four-blockchains"},{"credibility":2,"name":"Cosmos EVM State Handling Vulnerability CVE-2026-ASA002 — DailyCVE","type":"research","url":"https://dailycve.com/cosmos-evm-state-handling-vulnerability-cve-2026-asa002-critical/"},{"credibility":2,"name":"GHSA-54gx-3cgr-7mfm: Cosmos EVM incorrect state handling — Endor Labs","type":"research","url":"https://www.endorlabs.com/vulnerability/ghsa-54gx-3cgr-7mfm"}]},{"content":"MANTRA Chain was not the only network affected by ASA-2026-002. KiiChain suffered a separate attack on August 22, 2026, in which an attacker repeated the same exploit technique 18 times, draining approximately 148.3 million KII tokens. KiiChain halted at block 935. The drained tokens were reported to be worth theoretically over $9 million but sold for approximately $1.6 million in BUSD, significantly crashing KiiChain's token price. TAC Network halted at block 24,671,475 on August 22 after an attacker drained a single account of approximately 3 billion TAC tokens, valued at roughly $7.5 million. Nesa, a fourth chain, halted preemptively without reported user-fund losses. MANTRA and Nesa are reported to have halted their chains before exploitation of user funds occurred; KiiChain and TAC did not. Cosmos Labs issued a public advisory urging all remaining Cosmos EVM chains to halt validators following the series of incidents. The same vulnerability class had already resulted in an estimated $7 million loss on Saga's EVM network in January 2026, in which an attacker used forged IBC messages to mint an uncollateralized stablecoin and bridge proceeds to Ethereum.","heading":"Broader Impact: KiiChain, TAC, and Nesa","severity":"critical","sources":[{"credibility":2,"name":"Cosmos Labs Confirms Cosmos EVM Incident as 3 Chains Disclose Impact — BeInCrypto","type":"news_article","url":"https://beincrypto.com/cosmos-evm-security-incident-kiichain-tac-mantra/"},{"credibility":2,"name":"Cosmos Labs under fire over disclosure of bug affecting four blockchains — Protos","type":"news_article","url":"https://protos.com/cosmos-labs-under-fire-over-disclosure-of-bug-affecting-four-blockchains"},{"credibility":2,"name":"Cosmos Labs Confirms Cosmos EVM Incident as 3 Chains Disclose Impact — Yahoo Finance","type":"news_article","url":"https://finance.yahoo.com/markets/crypto/articles/cosmos-labs-confirms-cosmos-evm-043443408.html"},{"credibility":2,"name":"MANTRA Chain Hacked Via Cosmos EVM Bug That Already Cost Saga $7M in January — TechTimes","type":"news_article","url":"https://www.techtimes.com/articles/325233/20260821/mantra-chain-hacked-via-cosmos-evm-bug-that-already-cost-saga-7m-january.htm"},{"credibility":2,"name":"Cosmos Labs Urges Cosmos EVM Chains to Halt Validators, Three Now Offline — The Crypto Times","type":"news_article","url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"}]},{"content":"MANTRA's official communications confirmed that two project-managed wallet addresses were affected by the exploit, but the team declined to disclose the nature of the activity in those wallets, any value at risk, or whether digital assets were transferred out of them. The team stated 'no user funds were exploited' and that 'no assets belonging to users, exchange partners, or ecosystem collaborators were compromised.' A comprehensive technical post-mortem was promised 'within the next few days' following chain restoration on August 22, but as of August 27, 2026, no detailed technical report had been published. Undisclosed specifics include: the exact attack methodology used against MANTRA's infrastructure; what occurred in the two affected managed wallets; whether any assets were extracted and in what amount; and a full accounting of the 30-hour downtime's financial effects on ecosystem partners. MANTRA confirmed v8.4.0 was tested on its DuKong testnet and in an internal mainnet-mirroring environment before deployment, and that no state migrations or rollbacks were required on resumption.","heading":"MANTRA's Disclosures and Ongoing Opacity","severity":"medium","sources":[{"credibility":2,"name":"MANTRA Chain resumes blocks after Cosmos-EVM fix — crypto.news","type":"news_article","url":"https://crypto.news/mantra-chain-resumes-blocks-after-cosmos-evm-fix/"},{"credibility":2,"name":"MANTRA Chain Restores Operations Following Extended Network Downtime — MoneyCheck","type":"news_article","url":"https://moneycheck.com/mantra-chain-restores-operations-following-extended-network-downtime-due-to-evm-security-flaw/"},{"credibility":2,"name":"MANTRA Chain Halts Network Operations After Detecting Upstream Vulnerability — Metaverse Post","type":"news_article","url":"https://mpost.io/mantra-chain-halts-network-operations-after-detecting-upstream-vulnerability-freezing-all-transactions-and-withdrawals/"}]},{"content":"MANTRA's OM token fell approximately 18.5% from $0.005060 to a then-record low of $0.004126 during the period surrounding the halt. Trading volume surged approximately 600% to roughly $24 million as holders reacted on exchanges where spot trading continued. The record low was notable because the token had already lost over 90% of its value in April 2025. Exchange MEXC suspended MANTRA deposits and withdrawals in response to the incident. As of the date of this investigation, MANTRA's OM token remains at historically depressed levels following both the April 2025 collapse and the August 2026 exploit.","heading":"Market Impact","severity":"high","sources":[{"credibility":1,"name":"MANTRA token plunges 18% to record low as blockchain halts after exploit — CoinDesk","type":"news_article","url":"https://www.coindesk.com/tech/2026/08/21/mantra-token-plunges-18-to-record-low-as-blockchain-halts-after-exploit"},{"credibility":2,"name":"MANTRA Price Crashes 18% as Exploit Forces Full Blockchain Halt — CryptoRank","type":"news_article","url":"https://cryptorank.io/news/feed/64dce-mantra-price-crashes-18-as-exploit-forces-full-blockchain-halt"},{"credibility":2,"name":"MANTRA Chain Halts Network After Exploit as Token Hits Record Low — DailyCoin","type":"news_article","url":"https://dailycoin.com/mantra-chain-halts-network-after-exploit-as-token-hits-record-low"}]},{"content":"The August 2026 exploit is not MANTRA's first major incident. On April 13, 2025, the OM token collapsed more than 90% within approximately one hour, falling from around $6.30 to under $0.50 and wiping out over $5.4 billion in market capitalization. MANTRA's leadership attributed the crash to 'reckless forced liquidations' carried out by centralized exchanges during low-liquidity hours. However, OKX identified major changes to MANTRA's tokenomics since October 2024 and reported that on-chain addresses had been executing large-scale coordinated deposits and withdrawals across centralized exchanges since March 2025. A wallet associated with MANTRA co-founder John Patrick Mullin was cited in some reports as having deposited tokens to OKX ahead of the collapse; Mullin disputed that his team tokens were moved. No formal regulatory action or adjudicated finding of market manipulation has been publicly confirmed in connection with the April 2025 crash. Mullin subsequently pledged to burn 150 million OM tokens from his own holdings as part of a recovery plan. The April 2025 collapse and the August 2026 exploit together represent two severe, distinct incidents within a period of roughly 16 months.","heading":"Prior History: April 2025 OM Token Collapse","severity":"high","sources":[{"credibility":1,"name":"MANTRA's $5.4B Crash: How Supply Control Set the Stage for Disaster — Forbes","type":"news_article","url":"https://www.forbes.com/sites/aliceliu/2025/04/14/mantras-54-billion-crash-how-supply-control-led-to-disaster/"},{"credibility":2,"name":"Mantra OM Token Crash: Liquidity Issues, Market Manipulation Allegations, Recovery Plans — Crowdfund Insider","type":"news_article","url":"https://www.crowdfundinsider.com/2025/04/238682-mantras-om-crypto-token-crash-liquidity-issues-market-manipulation-allegations-recovery-plans/"},{"credibility":2,"name":"How Mantra's OM token collapsed in 24 hours of chaos — CoinTelegraph","type":"news_article","url":"https://cointelegraph.com/news/mantra-om-token-collapsed-24-hours"},{"credibility":2,"name":"Statement of Events: 13th April 2025 — MANTRA Official","type":"official","url":"https://mantrachain.io/resources/announcements/statement-of-events-13-april-2025"},{"credibility":1,"name":"Mantra to Burn 160M OM Tokens Following 90% Price Crash — CoinDesk","type":"news_article","url":"https://www.coindesk.com/markets/2025/04/22/mantra-to-burn-160m-om-tokens-50-from-daos-founder-following-90-price-crash"}]},{"content":"In June 2026, Inveniam Capital Partners announced an agreement to acquire MANTRA and its affiliated entities, following a $20 million strategic investment Inveniam had made in MANTRA in August 2025. The acquisition was initially targeted to close by June 30, 2026. The August 2026 exploit occurred while the acquisition was reportedly in its closing stages. Inveniam subsequently indicated it was proceeding with the acquisition after the exploit. The combined entity plans to retain the MANTRA brand, with MANTRA Chain, its gas token, MANTRA Finance, and mantraUSD forming core infrastructure pillars. Financial terms of the acquisition have not been publicly disclosed.","heading":"Acquisition Context: Inveniam Capital Partners","severity":"low","sources":[{"credibility":1,"name":"Inveniam to Acquire MANTRA, Combining Tokenized Asset Infrastructure with AI-Ready Private Market Data — GlobeNewswire","type":"official","url":"https://www.globenewswire.com/news-release/2026/06/16/3312813/0/en/inveniam-to-acquire-mantra-combining-tokenized-asset-infrastructure-with-ai-ready-private-market-data.html"},{"credibility":2,"name":"Inveniam Capital Partners Pushes Mantra Acquisition After $20M Bet — Bitcoin.com News","type":"news_article","url":"https://news.bitcoin.com/inveniam-capital-partners-pushes-mantra-acquisition-after-20m-bet-cementing-rwa-ai-stack/"}]},{"content":"Cosmos Labs released the fix for ASA-2026-002 (v0.6.0) in March 2026 without privately notifying downstream chains using the vulnerable Cosmos EVM module in advance of public release. This approach — which Cosmos Labs describes as a 'silent patch model' — was publicly criticized after the August 2026 attacks on MANTRA, KiiChain, TAC, and Nesa. KiiChain's post-mortem explicitly attributed part of its losses to this disclosure failure, stating that publishing a security fix publicly before privately notifying affected chains hands the vulnerability to any attacker monitoring open-source commits. Security researchers described the approach as negligent. Cosmos Labs subsequently issued broader public advisories urging all Cosmos EVM chains to halt validators. The same vulnerability class had already been exploited on Saga's network in January 2026, raising questions about whether the March 2026 patch was communicated urgently enough to downstream operators in the months between Saga's exploit and the August 2026 wave of attacks.","heading":"Responsible Disclosure Failures","severity":"high","sources":[{"credibility":2,"name":"Cosmos Labs under fire over disclosure of bug affecting four blockchains — Protos","type":"news_article","url":"https://protos.com/cosmos-labs-under-fire-over-disclosure-of-bug-affecting-four-blockchains"},{"credibility":2,"name":"Cosmos Labs Warns of Security Incident Affecting Cosmos EVM Module Users — KuCoin","type":"news_article","url":"https://www.kucoin.com/news/flash/cosmos-labs-warns-of-security-incident-affecting-cosmos-evm-module-users"},{"credibility":2,"name":"Cosmos EVM Vulnerability Triggers Emergency Shutdowns Across Multiple Chains — Blockonomi","type":"news_article","url":"https://blockonomi.com/cosmos-evm-vulnerability-triggers-emergency-shutdowns-across-multiple-chains"}]}],"sources_used":[{"credibility":1,"name":"MANTRA token plunges 18% to record low as blockchain halts after exploit — CoinDesk","type":"news_article","url":"https://www.coindesk.com/tech/2026/08/21/mantra-token-plunges-18-to-record-low-as-blockchain-halts-after-exploit"},{"credibility":1,"name":"ASA-2026-002 Security Advisory — cosmos/evm GitHub","type":"official","url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"credibility":1,"name":"MANTRA's $5.4B Crash: How Supply Control Set the Stage for Disaster — Forbes","type":"news_article","url":"https://www.forbes.com/sites/aliceliu/2025/04/14/mantras-54-billion-crash-how-supply-control-led-to-disaster/"},{"credibility":1,"name":"Mantra to Burn 160M OM Tokens Following 90% Price Crash — CoinDesk","type":"news_article","url":"https://www.coindesk.com/markets/2025/04/22/mantra-to-burn-160m-om-tokens-50-from-daos-founder-following-90-price-crash"},{"credibility":1,"name":"Inveniam to Acquire MANTRA, Combining Tokenized Asset Infrastructure with AI-Ready Private Market Data — GlobeNewswire","type":"official","url":"https://www.globenewswire.com/news-release/2026/06/16/3312813/0/en/inveniam-to-acquire-mantra-combining-tokenized-asset-infrastructure-with-ai-ready-private-market-data.html"},{"credibility":1,"name":"Cosmos Labs Confirms Cosmos EVM Incident as 3 Chains Disclose Impact — Yahoo Finance","type":"news_article","url":"https://finance.yahoo.com/markets/crypto/articles/cosmos-labs-confirms-cosmos-evm-043443408.html"},{"credibility":2,"name":"Cosmos Labs Urges EVM Chains To Halt As Shared Bug Drains Three Networks — The Defiant","type":"news_article","url":"https://thedefiant.io/news/blockchains/cosmos-labs-urges-evm-chains-halt-shared-bug-drains-three-networks"},{"credibility":2,"name":"Cosmos Labs under fire over disclosure of bug affecting four blockchains — Protos","type":"news_article","url":"https://protos.com/cosmos-labs-under-fire-over-disclosure-of-bug-affecting-four-blockchains"},{"credibility":2,"name":"MANTRA Chain resumes blocks after Cosmos-EVM fix — crypto.news","type":"news_article","url":"https://crypto.news/mantra-chain-resumes-blocks-after-cosmos-evm-fix/"},{"credibility":2,"name":"MANTRA Chain Restores Operations Following 30-Hour Cosmos-EVM Vulnerability Shutdown — Blockonomi","type":"news_article","url":"https://blockonomi.com/mantra-chain-restores-operations-following-30-hour-cosmos-evm-vulnerability-shutdown"},{"credibility":2,"name":"MANTRA Chain Halts Network After Unidentified Incident — The Crypto Times","type":"news_article","url":"https://www.cryptotimes.io/2026/08/21/mantra-chain-halts-network-unidentified-incident/"},{"credibility":2,"name":"MANTRA Chain Halts Network Operations After Detecting Upstream Vulnerability — Metaverse Post","type":"news_article","url":"https://mpost.io/mantra-chain-halts-network-operations-after-detecting-upstream-vulnerability-freezing-all-transactions-and-withdrawals/"},{"credibility":2,"name":"MANTRA Chain Hacked Via Cosmos EVM Bug That Already Cost Saga $7M in January — TechTimes","type":"news_article","url":"https://www.techtimes.com/articles/325233/20260821/mantra-chain-hacked-via-cosmos-evm-bug-that-already-cost-saga-7m-january.htm"},{"credibility":2,"name":"Cosmos Labs Warns of Security Incident Affecting Cosmos EVM Module Users — KuCoin","type":"news_article","url":"https://www.kucoin.com/news/flash/cosmos-labs-warns-of-security-incident-affecting-cosmos-evm-module-users"},{"credibility":2,"name":"Cosmos EVM Vulnerability Triggers Emergency Shutdowns Across Multiple Chains — Blockonomi","type":"news_article","url":"https://blockonomi.com/cosmos-evm-vulnerability-triggers-emergency-shutdowns-across-multiple-chains"},{"credibility":2,"name":"Cosmos Labs Urges Cosmos EVM Chains to Halt Validators, Three Now Offline — The Crypto Times","type":"news_article","url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"},{"credibility":2,"name":"MANTRA Price Crashes 18% as Exploit Forces Full Blockchain Halt — CryptoRank","type":"news_article","url":"https://cryptorank.io/news/feed/64dce-mantra-price-crashes-18-as-exploit-forces-full-blockchain-halt"},{"credibility":2,"name":"MANTRA Chain Halts Network After Exploit as Token Hits Record Low — DailyCoin","type":"news_article","url":"https://dailycoin.com/mantra-chain-halts-network-after-exploit-as-token-hits-record-low"},{"credibility":2,"name":"Mantra OM Token Crash: Liquidity Issues, Market Manipulation Allegations, Recovery Plans — Crowdfund Insider","type":"news_article","url":"https://www.crowdfundinsider.com/2025/04/238682-mantras-om-crypto-token-crash-liquidity-issues-market-manipulation-allegations-recovery-plans/"},{"credibility":2,"name":"How Mantra's OM token collapsed in 24 hours of chaos — CoinTelegraph","type":"news_article","url":"https://cointelegraph.com/news/mantra-om-token-collapsed-24-hours"},{"credibility":2,"name":"Statement of Events: 13th April 2025 — MANTRA Official","type":"official","url":"https://mantrachain.io/resources/announcements/statement-of-events-13-april-2025"},{"credibility":2,"name":"GHSA-54gx-3cgr-7mfm: Cosmos EVM incorrect state handling during nested EVM execution — Endor Labs","type":"research","url":"https://www.endorlabs.com/vulnerability/ghsa-54gx-3cgr-7mfm"},{"credibility":2,"name":"Inveniam Capital Partners Pushes Mantra Acquisition After $20M Bet — Bitcoin.com News","type":"news_article","url":"https://news.bitcoin.com/inveniam-capital-partners-pushes-mantra-acquisition-after-20m-bet-cementing-rwa-ai-stack/"},{"credibility":2,"name":"Cosmos EVM State Handling Vulnerability CVE-2026-ASA002 — DailyCVE","type":"research","url":"https://dailycve.com/cosmos-evm-state-handling-vulnerability-cve-2026-asa002-critical/"}],"summary":"On August 20-21, 2026, MANTRA Chain halted all block production after an attacker exploited a critical vulnerability (ASA-2026-002) in the shared Cosmos EVM ICS20 precompile, a component developed by Cosmos Labs and used by multiple chains. MANTRA's OM token fell 18.5% to an all-time low of $0.004126 during the approximately 30-hour outage, and the chain resumed on August 22 after deploying patched version 8.4.0. MANTRA stated no user funds were exploited and that only two project-managed wallets were affected, but the team has not published a technical post-mortem nor disclosed what, if anything, was extracted from those wallets, leaving the full financial scope of the incident unresolved as of August 27, 2026.","timeline":[{"date":"2026-01-01","event":"Saga EVM network suffers an estimated $7 million exploit via the same ICS20 precompile vulnerability class (ASA-2026-002); attacker mints uncollateralized stablecoin using forged IBC messages and bridges proceeds to Ethereum.","source":"MANTRA Chain Hacked Via Cosmos EVM Bug That Already Cost Saga $7M in January — TechTimes","source_url":"https://www.techtimes.com/articles/325233/20260821/mantra-chain-hacked-via-cosmos-evm-bug-that-already-cost-saga-7m-january.htm"},{"date":"2026-03-01","event":"Cosmos Labs releases v0.6.0 of the Cosmos EVM module, silently patching ASA-2026-002, without advance private notification to downstream chains.","source":"ASA-2026-002 Security Advisory — cosmos/evm GitHub","source_url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"date":"2026-06-16","event":"Inveniam Capital Partners announces agreement to acquire MANTRA following a $20 million strategic investment; deal targeted to close by June 30, 2026.","source":"Inveniam to Acquire MANTRA — GlobeNewswire","source_url":"https://www.globenewswire.com/news-release/2026/06/16/3312813/0/en/inveniam-to-acquire-mantra-combining-tokenized-asset-infrastructure-with-ai-ready-private-market-data.html"},{"date":"2026-08-20","event":"MANTRA Chain detects an active attacker exploiting the Cosmos EVM ICS20 precompile vulnerability in two project-managed wallets. Network halts block production at approximately 11:13 p.m. UTC (last block: 17,449,398). All transactions, endpoints, bridge operations, and exchange deposits/withdrawals are frozen.","source":"MANTRA token plunges 18% to record low as blockchain halts after exploit — CoinDesk","source_url":"https://www.coindesk.com/tech/2026/08/21/mantra-token-plunges-18-to-record-low-as-blockchain-halts-after-exploit"},{"date":"2026-08-21","event":"MANTRA's OM token falls approximately 18.5% to a then-record low of $0.004126. Trading volume surges approximately 600% to roughly $24 million. MEXC suspends MANTRA deposits and withdrawals. At 9:45 a.m. UTC, MANTRA announces it has identified the root cause as isolated to the Cosmos EVM module affecting two wallet addresses, and states no user funds were exploited.","source":"MANTRA Chain Halts Network After Unidentified Incident — The Crypto Times","source_url":"https://www.cryptotimes.io/2026/08/21/mantra-chain-halts-network-unidentified-incident/"},{"date":"2026-08-22","event":"KiiChain suffers 18 repeated exploit attempts draining approximately 148.3 million KII tokens (sold for roughly $1.6 million). TAC Network halted after approximately 3 billion TAC tokens (valued at roughly $7.5 million) are drained from its staking contract. MANTRA Chain resumes block production at approximately 05:30 UTC after coordinated validator upgrade to v8.4.0. Cosmos Labs publicly urges all remaining Cosmos EVM chains to halt validators.","source":"Cosmos Labs Confirms Cosmos EVM Incident as 3 Chains Disclose Impact — Yahoo Finance","source_url":"https://finance.yahoo.com/markets/crypto/articles/cosmos-labs-confirms-cosmos-evm-043443408.html"},{"date":"2026-08-25","event":"Cosmos Labs issues broader public advisory on the ASA-2026-002 vulnerability. Criticism of Cosmos Labs' silent patch disclosure model grows publicly.","source":"Cosmos Labs Urges Cosmos EVM Chains to Halt Validators, Three Now Offline — The Crypto Times","source_url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"},{"date":"2026-08-27","event":"MANTRA has not published a technical post-mortem. Financial details about the two affected project-managed wallets remain undisclosed. The promised post-mortem analysis has not appeared as of the date of this investigation.","source":"MANTRA Chain Restores Operations Following 30-Hour Cosmos-EVM Vulnerability Shutdown — Blockonomi","source_url":"https://blockonomi.com/mantra-chain-restores-operations-following-30-hour-cosmos-evm-vulnerability-shutdown"}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 406b3678-11ce-4bf3-934d-dbff70277c53copy