Fact-check findings

The reviewer could not reconcile the claim with the evidence it cited. This is a lead, not a ruling that the claim is false.

1. #6[disputed][awaiting moderator]in section: Protocol Background

   “At its peak Nostra managed approximately $55 million in TVL”

   reviewerPeak TVL approximately $55 millionGate describes $55M as a then-current figure, not a peak. DefiLlama reportedly shows a far higher ATH. The proposed wording relies on a search summary, not a page I read; the judge may prefer to simply drop 'At its peak'.
   Proposed correction (not yet applied)

   At one point DefiLlama recorded Nostra's all-time-high TVL at approximately $194 million (June 2024)
   citedwww.gate.com/learn/articles/all-you-need…tra-finance/1410

No source the reviewer could reach confirms or contradicts the claim.

1. #8[unverifiable][awaiting moderator]in the timeline

   “Nostra launched nstSTRK liquid staking token on Starknet.”

   reviewernstSTRK launched March 2024The cited Gate page does not support the claim, and I found no other source. The 2024-03-01 date also looks like a month-precision placeholder.
   citedwww.gate.com/learn/articles/all-you-need…tra-finance/1410
2. #9[unverifiable][awaiting moderator]in the timeline

   “Nostra paused borrowing against xSTRK and sSTRK after price feed errors inflated their oracle values approximately three times within a narrow block range. No confirmed financial losses reported.”

   reviewerMarch 24, 2025 xSTRK/sSTRK oracle error; blocks 1256310-1256360; xSTRK $0.1793 to $0.5897; remediation plannedCited source blocked. Gate's mention of a ~3x inflation is consistent but undated, so the exact date, blocks and prices remain unchecked.
   citedbitnewsbot.com/starknets-nostra-protocol…er-oracle-error/

The cited evidence supports part of the claim but not all of it.

1. #7[partially supported][awaiting moderator]in the timeline

   “NSTR governance token distributed via airdrop. Founder David Garai stepped down as CEO shortly thereafter.”

   reviewerDavid Garai stepped down as CEO shortly after NSTR airdrop in June 2024The fact appears true per search results from other outlets, but the cited AMBCrypto source does not support it. The citation should be replaced. The June 2024 airdrop also conflicts with Gate Learn, which describes NSTR as launching in 2025.
   citedambcrypto.com/nostra-hit-by-3-5m-oracle-…-emerge-details/

The cited evidence supports the claim as written.

1. #1[confirmed][no action needed]in the timeline

   “At approximately 05:23 UTC, attacker created a fake NSTR/SolvBTC pool on Starknet with approximately 1.5 SolvBTC of one-sided liquidity and began wash-trading through it.”

   reviewerAttacker created fake NSTR/SolvBTC pool with ~1.5 SolvBTC one-sided liquidity at ~05:23 UTC on 2026-09-17Matches the DEV Community writeup; the source is a blog, so the technical detail rests on a single secondary account.
   citeddev.to/qanzhi111/nostra-finance-35m-expl…oney-market-2h2l
2. #2[confirmed][no action needed]in the timeline

   “Between approximately 05:48 and 05:50 UTC, attacker used inflated NSTR as collateral to borrow approximately $3.5 million in ETH, STRK, USDC, USDT, WBTC, and DAI from Nostra's money market.”

   reviewerNSTR oracle price rose from ~$0.006 to ~$49.50 (~8,000x), borrows 05:48-05:50 of ~$3.5M in six assets, routed via AVNU/Ekubo/JediSwapCore exploit facts corroborated by the DEV writeup and by search summaries of several outlets. The cited CryptoTimes page was blocked to me.
   citedwww.cryptotimes.io/2026/09/18/nostra-hal…-oracle-exploit/
3. #3[confirmed][no action needed]in section: September 2026 Oracle Manipulation Exploit

   “Approximately 2.2 million STRK were also reported by analysis in the DEV Community writeup as having been bridged off Starknet via the NEAR Intents bridge.”

   reviewer~$1.92M bridged to Ethereum incl. 234.57 ETH and 1.3M DAI; ~2.2M STRK via NEAR IntentsMatches. Note the same source says GoPlus reported about $1.5M still in the borrow account, which the page does not mention.
   citeddev.to/qanzhi111/nostra-finance-35m-expl…oney-market-2h2l
4. #4[confirmed][no action needed]in section: September 2026 Oracle Manipulation Exploit

   “The borrowed sum exceeded NSTR's entire circulating market capitalization of approximately $546,751 to $590,000 by more than five times.”

   reviewerBorrowed sum exceeded NSTR market cap (~$546,751 to $590,000) by more than five timesArithmetic holds ($3.5M / $0.55-0.59M is roughly 6x).
   citeddev.to/qanzhi111/nostra-finance-35m-expl…oney-market-2h2l
5. #5[confirmed][no action needed]in section: Protocol Status and User Impact

   “TVL reportedly collapsed from approximately $4 million to approximately $710,000 following the event, according to the DEV Community technical analysis.”

   reviewerTVL fell from ~$4M to ~$710,000 per DEV CommunityMatches. Later DefiLlama data (search summary) shows about $212k by early October.
   citeddev.to/qanzhi111/nostra-finance-35m-expl…oney-market-2h2l
6. #10[confirmed][no action needed]in section: September 2026 Oracle Manipulation Exploit

   “No full technical post-mortem had been published as of the date of this report, and final losses and any recoveries remained unconfirmed.”

   reviewerNostra halted all functions; no post-mortem yet; recovery unconfirmed; scam warningConsistent with available coverage; I found no later post-mortem as of late October 2026.
   citedwww.cryptotimes.io/2026/09/18/nostra-hal…-oracle-exploit/
7. #11[confirmed][no action needed]in section: Protocol Background

   “Nostra Finance was developed by Tempus and described as the liquidity layer of the Starknet ecosystem.”

   reviewerPage presents the UNO stablecoin, Tempus origin and 'liquidity layer' descriptionSupported, though Gate says UNO has 'not yet officially launched' in places, so the page's UNO sentence is only loosely supported.
   citedwww.gate.com/learn/articles/all-you-need…tra-finance/1410