Audit log

Every state-changing event for MANTRA Chain: 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

   2026-08-26 12:05:47Z
   Score: ? → ? (no score change)
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   EwULKKN3qj9d…9jSmDw1icopysha256 → base58

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   {"actor":"system:backfill","investigation_id":"0ffbfa7c-6f53-4b54-9379-116f5a65d8f5","kind":"publish","page_slug":"mantra-chain","published_at":"2026-08-26T12:05:47.224Z","sequence_num":1,"snapshot":{"content_type":"investigation","entity_name":"MANTRA Chain","sections":[{"content":"At approximately 23:13:04 UTC on August 20, 2026 (block 17,449,399), MANTRA Chain ceased producing blocks after the team detected active exploitation of a vulnerability in an upstream software dependency. The chain remained halted for approximately 30 hours. Block production resumed at approximately 05:30 UTC on August 22, 2026 (block 17,449,400) following a coordinated validator restart using patched software version 8.4.0. MANTRA stated that two MANTRA-managed wallet addresses were affected during the incident and that no user funds were exploited and no state rollback was performed. The patch addressed the vulnerability in the EVM module without requiring state migrations or changes to stored blockchain data. The team promised a full post-mortem report following restoration.","heading":"August 2026 Network Halt and Exploit","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 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 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 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"}]},{"content":"The vulnerability exploited in the August 2026 incident was rooted in the shared Cosmos EVM codebase, not MANTRA-specific logic. Security advisory ASA-2026-002 (GitHub identifier GHSA-54gx-3cgr-7mfm), published by Cosmos Labs in March 2026, described a critical flaw in the ICS20 precompile — a component enabling EVM smart contracts to initiate cross-chain token transfers via the Inter-Blockchain Communication (IBC) protocol. The flaw involved incorrect state handling during nested EVM execution: state updates performed during recursive calls were not properly propagated to outer execution contexts, allowing the same token balance to be reused within a single transaction. The patched version was v0.6.0, released in March 2026. The vulnerable code was first introduced in July 2024. Cosmos Labs identified 15 chains running the affected implementation: six had the ICS20 precompile disabled, one (Saga EVM) was exploited in January 2026 with losses of approximately $7 million, and the remainder received mitigations. The fact that MANTRA was exploited in August 2026 despite the March 2026 public patch raises questions about whether MANTRA had applied the upstream fix prior to the incident; MANTRA has not publicly clarified this point as of the time of writing.","heading":"Root Cause: Cosmos EVM ICS20 Precompile Vulnerability (ASA-2026-002)","severity":"critical","sources":[{"credibility":1,"name":"ASA-2026-002 — Cosmos EVM ICS20 Precompile Security Advisory — GitHub","type":"other","url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"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 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":"GHSA-54gx-3cgr-7mfm — Endor Labs Vulnerability Database","type":"research","url":"https://www.endorlabs.com/vulnerability/ghsa-54gx-3cgr-7mfm"}]},{"content":"The August 2026 Cosmos EVM vulnerability did not affect only MANTRA. On August 22, 2026, KiiChain disclosed that an attacker drained 148,326,583.15 KII tokens across 18 repeated transactions before validators halted the chain at block 9,355,723. A portion of the stolen KII was subsequently bridged to BNB Smart Chain via the Hyperlane cross-chain bridge. TAC also halted block production after an attacker drained one account via the same Cosmos EVM module. On August 24, 2026, Cosmos Labs issued a broader advisory urging all Cosmos EVM chains in contact with the project to request validators halt their chains. MANTRA, by contrast, stated that no user funds were lost in its incident, distinguishing its outcome from KiiChain's confirmed drain. The episode illustrates systemic risk arising from shared infrastructure across sovereign Cosmos chains.","heading":"Broader Cosmos EVM Incident: KiiChain and TAC Also Affected","severity":"high","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 Urges Cosmos EVM Chains to Halt Validators, Three Now Offline — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"},{"credibility":2,"name":"KiiChain Confirms 148.3M KII Drain in Cosmos EVM Exploit — COINOTAG","type":"news_article","url":"https://en.coinotag.com/kiichain-confirms-148m-kii-drain-cosmos-evm-exploit"},{"credibility":2,"name":"Cosmos requests validators to halt their chains after EVM breach: 148.3M KII lost — AMBCrypto","type":"news_article","url":"https://ambcrypto.com/cosmos-requests-validators-to-halt-their-chains-after-evm-breach-148-3m-kii-lost/"}]},{"content":"The OM token fell approximately 18.5% to an all-time low of $0.004126 during the halt on August 20-21, 2026, down from $0.005060 earlier in the session, as trading volume surged nearly 600%. By August 22, the token had partially recovered to approximately $0.00456. Market capitalization at the time of the incident was approximately $28.8 million (ranked 672nd by CoinMarketCap), compared to an all-time high of approximately $0.02627 reached on March 4, 2026, and a peak market capitalization well above $4 billion in late 2024 when OM reached $4.60 on December 11, 2024. Upbit, Bithumb, and Binance suspended OM deposits and withdrawals in response to the chain halt. Binance's withdrawal suspension for OM remained in effect as of approximately 18:38 UTC on August 22, 2026 — more than 15 hours after block production resumed. Upbit issued an investment caution notice. Kraken did not suspend OM trading. South Korean exchanges Upbit, Bithumb, and Coinone subsequently placed OM on delisting watchlists under the Virtual Asset User Protection Act, which typically provides a roughly one-month grace period for the project to address exchange requirements before a final delisting decision is made. As of publication, no delisting had been confirmed.","heading":"Token Price Impact and Exchange Suspensions","severity":"high","sources":[{"credibility":2,"name":"MANTRA Chain Outage Halts Network as OM Sits Near $25M Market Cap — Cryptonomist","type":"news_article","url":"https://en.cryptonomist.ch/2026/08/21/mantra-chain-outage/"},{"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":"Upbit, Bithumb, and Coinone Place MANTRA (OM) on Delisting Watchlist — CryptoRank","type":"news_article","url":"https://cryptorank.io/news/feed/9ead1-mantra-delisting-watchlist-south-korea-exchanges"},{"credibility":2,"name":"Upbit Places This Altcoin Under Investment Warning Due to Security Incident — Koin Bulteni","type":"news_article","url":"https://koinbulteni.com/en/upbit-places-this-altcoin-under-investment-warning-due-to-security-incident-deposits-suspended-284889.html"},{"credibility":2,"name":"MANTRA Chain Halt: Withdrawal Frozen — CryptoTicker","type":"news_article","url":"https://cryptoticker.io/en/mantra-chain-halt-withdrawal-frozen/"}]},{"content":"The August 2026 incident is MANTRA's second major crisis within approximately 16 months. On April 13, 2025, the OM token collapsed more than 90% in under one hour — from approximately $6 to below $0.50 — wiping out more than $5 billion in market capitalization. MANTRA's leadership attributed the crash to forced liquidations by centralized exchanges during a period of low weekend liquidity, totaling approximately $66.97 million in 12 hours. On-chain analytics firm Glassnode found no significant pre-crash token inflows to exchanges that would indicate coordinated insider selling, and stated that its investigation found no evidence of wrongdoing by the MANTRA team or its early investors. Following the crash, MANTRA announced a token burn of 160 million OM tokens, with 80 million from the founder's own allocation. No regulatory finding or criminal charge relating to the April 2025 crash has been publicly reported as of the time of writing. Mantra subsequently reduced its workforce. In June 2026, Inveniam Capital Partners — which made a $20 million strategic investment in MANTRA in August 2025 — announced an agreement to acquire MANTRA, with the transaction expected to close by June 30, 2026. The status of that acquisition following the August 2026 security incident has not been separately confirmed.","heading":"April 2025 OM Token Collapse","severity":"high","sources":[{"credibility":1,"name":"MANTRA to Burn 160M OM Tokens, 50% from DAO's Founder 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":2,"name":"Glassnode Reveals What Happened as Mantra's OM Token Crashed 98% — The Crypto Basic","type":"research","url":"https://thecryptobasic.com/2025/04/14/glassnode-reveals-what-happened-as-mantras-om-token-crashed-98/"},{"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":"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":"Mantra Cuts Staff Less Than a Year After OM Crashed 90% — The Defiant","type":"news_article","url":"https://thedefiant.io/news/blockchains/mantra-cuts-staff-after-token-crash"},{"credibility":1,"name":"Inveniam to Acquire MANTRA — GlobeNewswire","type":"news_article","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"}]},{"content":"The August 2026 exploit raises questions about MANTRA's patch management practices. The Cosmos EVM ICS20 precompile vulnerability was publicly disclosed via advisory ASA-2026-002 in March 2026, with a patched version (v0.6.0) released at that time. The vulnerability had already caused approximately $7 million in losses on Saga EVM in January 2026. MANTRA has not publicly clarified whether it had applied the March 2026 upstream patch prior to the August 2026 incident, or whether it was running a version that remained vulnerable for approximately five months after the public patch release. The team's August 2026 patch (v8.4.0) is described as having fixed the EVM module vulnerability. MANTRA Chain also launched a major EVM interface upgrade on August 18, 2026 — two days before the exploit — the relationship between that upgrade and the exploit pathway has not been publicly addressed. Additionally, on August 24, 2026, Cosmos Labs issued a broader advisory urging all Cosmos EVM chains to halt validators, suggesting the full scope of the vulnerability may not have been contained by the individual chain responses.","heading":"Security Posture and Patch Management Concerns","severity":"high","sources":[{"credibility":1,"name":"ASA-2026-002 — Cosmos EVM ICS20 Precompile Security Advisory — GitHub","type":"other","url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"credibility":2,"name":"MANTRA Chain stays offline after exploit as Aug. 21 restart hinges on patch test — CryptoSlate","type":"news_article","url":"https://cryptoslate.com/mantra-chain-stays-offline-after-exploit-as-aug-21-restart-hinges-on-patch-test/"},{"credibility":2,"name":"Cosmos Labs Urges Cosmos EVM Chains to Halt Validators, Three Now Offline — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"}]},{"content":"MANTRA Chain is a layer-1 blockchain built on the Cosmos EVM stack, positioned for real-world asset (RWA) tokenization and regulatory-compliant financial infrastructure. The native OM token serves as the gas token, staking asset, and governance instrument. MANTRA launched its mainnet in October 2024, after which OM surged from below $0.05 to an all-time high of approximately $4.60 on December 11, 2024, representing a gain of over 8,000% within the year and a peak market capitalization exceeding $4 billion. At the time of the August 2026 halt, OM's market capitalization had fallen to approximately $28.8 million, reflecting the cumulative impact of the April 2025 crash and continued post-crash decline. MANTRA has pursued institutional partnerships, including agreements in the UAE and a May 2026 collaborative launch of the NVNM Chain Layer 2. As of June 2026, Inveniam Capital Partners announced an intent to acquire MANTRA following a prior $20 million investment. The status of that acquisition following the August 2026 security incident has not been publicly confirmed.","heading":"Project Background and Market Context","severity":"medium","sources":[{"credibility":2,"name":"2024 saw OM outperform the rest — AMBCrypto","type":"news_article","url":"https://ambcrypto.com/2024-saw-om-mantra-outperform-the-rest-will-2025-be-any-different/"},{"credibility":1,"name":"Inveniam to Acquire MANTRA — GlobeNewswire","type":"news_article","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/"}]}],"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 — Cosmos EVM ICS20 Precompile Security Advisory — GitHub","type":"other","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 — GlobeNewswire","type":"news_article","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":"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 Halts Network Operations — 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 Restores Operations — Blockonomi","type":"news_article","url":"https://blockonomi.com/mantra-chain-restores-operations-following-30-hour-cosmos-evm-vulnerability-shutdown"},{"credibility":2,"name":"MANTRA Chain stays offline after exploit — CryptoSlate","type":"news_article","url":"https://cryptoslate.com/mantra-chain-stays-offline-after-exploit-as-aug-21-restart-hinges-on-patch-test/"},{"credibility":2,"name":"MANTRA Chain Hacked Via Cosmos EVM Bug That Already Cost Saga $7M — 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 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 Urges Cosmos EVM Chains to Halt Validators — CryptoTimes","type":"news_article","url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"},{"credibility":2,"name":"KiiChain Confirms 148.3M KII Drain in Cosmos EVM Exploit — COINOTAG","type":"news_article","url":"https://en.coinotag.com/kiichain-confirms-148m-kii-drain-cosmos-evm-exploit"},{"credibility":2,"name":"Cosmos requests validators to halt after EVM breach — AMBCrypto","type":"news_article","url":"https://ambcrypto.com/cosmos-requests-validators-to-halt-their-chains-after-evm-breach-148-3m-kii-lost/"},{"credibility":2,"name":"Upbit, Bithumb, and Coinone Place MANTRA on Delisting Watchlist — CryptoRank","type":"news_article","url":"https://cryptorank.io/news/feed/9ead1-mantra-delisting-watchlist-south-korea-exchanges"},{"credibility":2,"name":"Upbit Places MANTRA Under Investment Warning — Koin Bulteni","type":"news_article","url":"https://koinbulteni.com/en/upbit-places-this-altcoin-under-investment-warning-due-to-security-incident-deposits-suspended-284889.html"},{"credibility":2,"name":"MANTRA Chain Outage Halts Network — Cryptonomist","type":"news_article","url":"https://en.cryptonomist.ch/2026/08/21/mantra-chain-outage/"},{"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":"Glassnode Reveals What Happened as Mantra's OM Token Crashed 98% — The Crypto Basic","type":"research","url":"https://thecryptobasic.com/2025/04/14/glassnode-reveals-what-happened-as-mantras-om-token-crashed-98/"},{"credibility":2,"name":"Mantra Cuts Staff After OM Crashed 90% — The Defiant","type":"news_article","url":"https://thedefiant.io/news/blockchains/mantra-cuts-staff-after-token-crash"},{"credibility":2,"name":"GHSA-54gx-3cgr-7mfm — Endor Labs","type":"research","url":"https://www.endorlabs.com/vulnerability/ghsa-54gx-3cgr-7mfm"},{"credibility":2,"name":"Cosmos EVM Vulnerability Triggers Emergency Shutdowns — Blockonomi","type":"news_article","url":"https://blockonomi.com/cosmos-evm-vulnerability-triggers-emergency-shutdowns-across-multiple-chains"},{"credibility":2,"name":"MANTRA Chain Halt Withdrawal Frozen — CryptoTicker","type":"news_article","url":"https://cryptoticker.io/en/mantra-chain-halt-withdrawal-frozen/"},{"credibility":2,"name":"MANTRA Freezes Blockchain After Cosmos EVM Incident — CryptoPotato","type":"news_article","url":"https://cryptopotato.com/mantra-freezes-blockchain-after-cosmos-evm-incident-as-token-hits-new-low/"}],"summary":"MANTRA Chain, a Cosmos-EVM layer-1 blockchain focused on real-world asset tokenization, halted all block production on August 20, 2026 after an attacker exploited a known vulnerability in the shared Cosmos EVM ICS20 precompile module. The network was offline for approximately 30 hours, the native OM token fell 18% to an all-time low of $0.004126, and South Korean exchanges Upbit, Bithumb, and Coinone placed OM on delisting watchlists. This is MANTRA's second major crisis in 2026, following the April 2025 collapse of OM by more than 90%, and occurs in the context of a broader Cosmos EVM security incident that also affected KiiChain and TAC.","timeline":[{"date":"2024-07-01","event":"Vulnerable ICS20 precompile code introduced into the Cosmos EVM upstream codebase.","source":"ASA-2026-002 — GitHub Security Advisory","source_url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"date":"2024-10-01","event":"MANTRA Chain mainnet launched.","source":"AMBCrypto","source_url":"https://ambcrypto.com/2024-saw-om-mantra-outperform-the-rest-will-2025-be-any-different/"},{"date":"2024-12-11","event":"OM token reaches all-time high of approximately $4.60, with market capitalization exceeding $4 billion.","source":"AMBCrypto","source_url":"https://ambcrypto.com/2024-saw-om-mantra-outperform-the-rest-will-2025-be-any-different/"},{"date":"2026-01-21","event":"Cosmos Labs is notified of suspicious activity on Saga EVM network; attacker drains approximately $7 million by exploiting the ICS20 precompile vulnerability.","source":"ASA-2026-002 — GitHub Security Advisory","source_url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"date":"2026-03-01","event":"Cosmos Labs publicly releases v0.6.0 with fix for ASA-2026-002 ICS20 precompile vulnerability.","source":"ASA-2026-002 — GitHub Security Advisory","source_url":"https://github.com/cosmos/evm/security/advisories/GHSA-54gx-3cgr-7mfm"},{"date":"2025-04-13","event":"OM token collapses more than 90% in under one hour, falling from approximately $6 to below $0.50 and wiping out more than $5 billion in market capitalization. MANTRA attributes the crash to forced liquidations by centralized exchanges.","source":"CoinDesk","source_url":"https://www.coindesk.com/markets/2025/04/22/mantra-to-burn-160m-om-tokens-50-from-daos-founder-following-90-price-crash"},{"date":"2026-06-16","event":"Inveniam Capital Partners announces agreement to acquire MANTRA, following a prior $20 million strategic investment made in August 2025.","source":"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":"2026-08-18","event":"MANTRA launches a major EVM interface upgrade.","source":"Coinpedia","source_url":"https://coinpedia.org/news/mantra-hits-emergency-stop-as-network-freezes-after-security-incident/amp/"},{"date":"2026-08-20","event":"At 23:13:04 UTC (block 17,449,399), MANTRA Chain halts block production after detecting active exploitation of a vulnerability in the Cosmos EVM upstream dependency. OM falls to an all-time low of $0.004126, down approximately 18.5% on the day.","source":"CryptoTicker / CoinDesk","source_url":"https://cryptoticker.io/en/mantra-chain-halt-withdrawal-frozen/"},{"date":"2026-08-21","event":"Upbit, Bithumb, and Binance suspend OM deposits and withdrawals. MANTRA confirms two of its own wallet addresses were affected and states no user funds were exploited.","source":"Koin Bulteni / CryptoRank","source_url":"https://koinbulteni.com/en/upbit-places-this-altcoin-under-investment-warning-due-to-security-incident-deposits-suspended-284889.html"},{"date":"2026-08-22","event":"Block production resumes at approximately 05:30 UTC (block 17,449,400) following coordinated validator restart on patched version 8.4.0. KiiChain discloses a drain of 148,326,583.15 KII via the same Cosmos EVM vulnerability. TAC also halts. Binance withdrawal suspension for OM remains in effect as of 18:38 UTC, more than 15 hours post-restart.","source":"crypto.news / AMBCrypto","source_url":"https://crypto.news/mantra-chain-resumes-blocks-after-cosmos-evm-fix/"},{"date":"2026-08-24","event":"Cosmos Labs issues advisory urging all Cosmos EVM chains to request validators halt their chains amid the broader security incident.","source":"CryptoTimes","source_url":"https://www.cryptotimes.io/2026/08/25/cosmos-labs-urges-evm-chains-to-halt-amid-security-incident/"},{"date":"2026-08-21","event":"Upbit, Bithumb, and Coinone place OM on delisting watchlists under South Korea's Virtual Asset User Protection Act. A roughly one-month grace period applies before a final delisting decision.","source":"CryptoRank","source_url":"https://cryptorank.io/news/feed/9ead1-mantra-delisting-watchlist-south-korea-exchanges"}]},"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision 94e82702-c5d2-4c9c-9ba5-95ec90034ce6copy
2. #2reviewby reviewerreviewer

   2026-08-27 03:22:42Z
   Score: 22 → 22 (no score change)
   The page's core narrative of the August 2026 Cosmos EVM exploit and chain halt is well-sourced and independently corroborated in almost every particular, including cross-chain details about KiiChain and TAC. The weakest parts of the page are its treatment of the April 2025 OM collapse: it overstates Glassnode's actual (narrower) finding into a de facto exoneration of the team on a causal question that remained genuinely and publicly contested at the time, it misstates the token burn figures by roughly half (apparently conflating dollar value with token count), and one timeline date (mainnet launch) defaults to the first of the month in a way that is verifiably wrong by three weeks. The page also omits several highly relevant, independently verifiable facts — the March 2026 OM-to-MANTRA 1:4 token rebrand, the 2024 supply increase and insider-concentration allegations, the specific VARA Dubai license, and a settled Hong Kong governance dispute involving the CEO — that materially affect a full tokenomics and trust assessment of this entity.
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   {"actor":"reviewer","decided_at":"2026-08-27T03:22:42.847Z","decision":"review","investigation_id":"0ffbfa7c-6f53-4b54-9379-116f5a65d8f5","new_score":22,"page_slug":"mantra-chain","prev_score":22,"reason":"The page's core narrative of the August 2026 Cosmos EVM exploit and chain halt is well-sourced and independently corroborated in almost every particular, including cross-chain details about KiiChain and TAC. The weakest parts of the page are its treatment of the April 2025 OM collapse: it overstates Glassnode's actual (narrower) finding into a de facto exoneration of the team on a causal question that remained genuinely and publicly contested at the time, it misstates the token burn figures by roughly half (apparently conflating dollar value with token count), and one timeline date (mainnet launch) defaults to the first of the month in a way that is verifiably wrong by three weeks. The page also omits several highly relevant, independently verifiable facts — the March 2026 OM-to-MANTRA 1:4 token rebrand, the 2024 supply increase and insider-concentration allegations, the specific VARA Dubai license, and a settled Hong Kong governance dispute involving the CEO — that materially affect a full tokenomics and trust assessment of this entity.","score_delta":0,"sequence_num":2,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision eaebed10-2826-4f2b-b4af-dc28bab6a413copy
3. #3review reviseby judgejudge

   2026-08-27 03:22:43Z
   Score: 22 → 10 (-12)
   The review's summary block reports 34 total claims but its claim_findings array contains only 22 entries; the missing 12 cannot be inspected, so we adjudicate on the verifiable array rather than the summary total. On that basis the disputed-or-unverifiable rate is about 18% (3 disputed + 1 unverifiable of 22), which still lands in the same decision band as the review's own reported 12% figure. The page's central claims about the August 2026 Cosmos EVM exploit, the chain halt, and the cross-chain KiiChain/TAC impact are thoroughly corroborated across independent sources (claim_findings[0], [3], [5]). Set against that, the review found the page understates its post-crash token burn by roughly half, apparently by substituting dollar-value figures for token counts (claim_findings[13]), and turns a narrower Glassnode finding into a blanket claim of no wrongdoing while omitting contemporaneous insider-selling allegations that were public at the time (claim_findings[12]) -- an omission that skews the page favorably toward the subject on a question that remained genuinely contested. Two high-priority coverage gaps -- the undisclosed March 2026 token rebrand/supply split and missing tokenomics/concentration history -- reinforce that revision, not approval, is warranted even though the disputed share of claims is modest.
   anchorpending

   chain

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   hash

   3sPRj2v3Qmc1…28FCrRYwcopysha256 → base58

   verifying row…

   canonical bytes (1686 B) ▸

   {"actor":"judge","decided_at":"2026-08-27T03:22:42.847Z","decision":"review_revise","investigation_id":"0ffbfa7c-6f53-4b54-9379-116f5a65d8f5","new_score":10,"page_slug":"mantra-chain","prev_score":22,"reason":"The review's summary block reports 34 total claims but its claim_findings array contains only 22 entries; the missing 12 cannot be inspected, so we adjudicate on the verifiable array rather than the summary total. On that basis the disputed-or-unverifiable rate is about 18% (3 disputed + 1 unverifiable of 22), which still lands in the same decision band as the review's own reported 12% figure. The page's central claims about the August 2026 Cosmos EVM exploit, the chain halt, and the cross-chain KiiChain/TAC impact are thoroughly corroborated across independent sources (claim_findings[0], [3], [5]). Set against that, the review found the page understates its post-crash token burn by roughly half, apparently by substituting dollar-value figures for token counts (claim_findings[13]), and turns a narrower Glassnode finding into a blanket claim of no wrongdoing while omitting contemporaneous insider-selling allegations that were public at the time (claim_findings[12]) -- an omission that skews the page favorably toward the subject on a question that remained genuinely contested. Two high-priority coverage gaps -- the undisclosed March 2026 token rebrand/supply split and missing tokenomics/concentration history -- reinforce that revision, not approval, is warranted even though the disputed share of claims is modest.","score_delta":-12,"sequence_num":3,"submission_content_hash":null,"submission_id":null,"submission_kind":null,"submission_valence":null,"v":1}

   Verify offline (run on your own machine)

   python -m src.verify_decision ac7985e6-1fd9-46ca-8ce7-61df140ab3e9copy