MintExample
25,000 OUSG
0x7099…79C8
25,000 OUSG minted to 0x7099…79C8
Ethereum · OUSGTransfer
Tokenized funds · Ethereum mainnet
OUSG mint & redemption alerts: when Ondo issues or burns OUSG
OUSG is Ondo's token for short-term US Treasuries. Every subscription mints new OUSG and every redemption burns it, on-chain. Open the ready-made rule and get an alert within seconds of confirmation, with the amount and the address.
Free on the Beta plan · within seconds of confirmation
Examples
What an OUSG alert looks like
Each alert is one event from the token contract, with the amount and the transaction. The amounts are examples; no USD values.
BurnExample
12,000 OUSG
0x3C44…93BC
12,000 OUSG burned from 0x3C44…93BC
Ethereum · OUSGTransfer
TransferExample
40,000 OUSG
0x90F7…b906
40,000 OUSG sent to 0x90F7…b906
Ethereum · OUSGTransfer
Example alerts. Set up the rule and the real ones reach your chat within seconds of confirmation.
What changes on-chain
What the rules listen for
The contract from the issuer's own docs, and the events the ready-made rules catch. Ordinary transfers never reach you.
Ondo Short-Term US Treasuries (OUSG)
0x1b19c19393e2d034d8ff31ff34c81252fcbbee92- New OUSG issuedTransfer from 0x0
Ondo mints OUSG to an investor who subscribed: a Transfer from the zero address.
- OUSG redeemedTransfer to 0x0
OUSG burned on redemption: a Transfer to the zero address.
- Large OUSG transferTransfer ≥ 10,000
Any OUSG transfer of 10,000 or more, between onboarded investors.
From the issuer
What the issuer says
OUSG gives exposure mainly to short-term US Treasuries, through funds from large asset managers, plus bank deposits and USDC for liquidity.
Source: Ondo docs: OUSG overview · checked 2026-10-16
Only onboarded investors eligible for Ondo's Qualified Access Funds can hold OUSG; the token moves only between those investors.
Source: Ondo docs: OUSG overview · checked 2026-10-16
Why set it up
Why people watch it
Subscriptions, as they settle
A mint is new OUSG issued to an investor: fresh money in the fund.
Redemptions too
A burn is OUSG handed back and taken out of circulation.
Ondo's own contract
The rule reads the OUSG token Ondo lists in its docs, never a copy.
Explained
How OUSG is minted and burned
OUSG is a standard upgradeable ERC-20 from Ondo's open-source contracts. A mint logs a Transfer from the zero address to the investor, and a burn a Transfer from the holder to the zero address. The ready-made rule listens for exactly those two, so ordinary transfers never reach you.
Investors subscribe and redeem with USDC through Ondo's own contracts or custodian. The alert is the token side of it: the OUSG issued or burned.
Explained
Large OUSG transfers
OUSG can only move between onboarded investors. The second rule sends an alert for every transfer of 10,000 OUSG or more; change the minimum in the form if you like.
Ready-made rules
Set it up in one click
Open a rule: the contract, the events and the conditions are filled in. Change the minimum if you like, click Create, and the alerts reach your chat.
Ready-made rules
Every rule for this contract
Each one opens the add form on this contract with the events and conditions filled in. Sign in, pick your chat and click Create.
EverythingEverything on a contractEvery event a contract emits — full visibility for power users.
TemplateMints and burnsNew supply minted and supply burned on an ERC-20, such as stablecoin issuance.
TemplateWhale transfersOnly the big transfers of a popular token, above a size threshold.
TemplateToken transfersEvery transfer for an ERC-20 token you care about.
TemplateToken approvalsApprovals granted on a token — unlimited allowances are flagged as a drain risk.
Popular alertOndo OUSG mints and burnsNew OUSG issued to investors, or redeemed and burned.
Popular alertOndo OUSG large transfersEvery OUSG transfer of 10,000 or more.
Pick one event
One event, nothing else
The form opens on this contract with that one event picked. Add a condition on its arguments if you like.
Pick one method
Calls to one method
An alert each time someone calls this method on the contract, with its arguments.
How it works
How the alert works
- 01
Open a ready-made rule: the contract, the events and the conditions are filled in.
- 02
Sign in, pick the chat the alerts go to and click Create.
- 03
Within seconds of confirmation, each matching event reaches you, with a link to the transaction.
FAQ
Frequently asked questions
Where does the data come from?
Every alert comes from the token contract's own event on Ethereum mainnet, read within seconds of confirmation, with a link to the transaction on Etherscan.
Can I get alerts only for large mints?
Yes. Open the mint & redemption rule and add a condition on the amount, for example 50,000 OUSG.
Can I set this alert for free?
Yes. The free Beta plan covers one contract and needs no card, so any one of these rules fits in it.
Do the alerts show prices or USD values?
No. Amounts are in token units, as the contract records them. Alerts carry no USD value and no price.
Is Alerts on Chain affiliated with Ondo?
No. Alerts on Chain is not affiliated with Ondo Finance. The rules read public on-chain data from the contract Ondo Finance publishes.
Does it cover other chains?
Ethereum mainnet only. Some of these tokens also live on other chains, each with its own contract; the rules here cover the Ethereum contract.
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Alerts and guides
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Transfers, approvals, mints and burns on any ERC-20 token.
Alerts and guides
Whale alerts for large token transfers
Any token's transfers above an amount you set.
Alerts and guides
How to get alerts for smart contract events
Pick a contract and an event, then add conditions on its arguments.
Your own alerts, on any contract
The Beta plan is free: one wallet and one contract, no credit card.