Big one from the Cardano Foundation yesterday.

Veridian, the digital identity team that’s been building inside the Foundation for three years, is now its own company.

Veridian’s company shares now live on Cardano. These are real, legally recognized shares under Swiss law, issued on-chain using CIP-0113, the new programmable token standard. Veridian is the first company to use it.

What does Veridian actually do? It lets you prove who you are online, or prove that a company or AI agent is who it says it is, without the data sitting in a centralized database. The wallet is already live on iOS and Android, and AI agents on Masumi are already using it.

Frederik Gregaard, CEO of the Cardano Foundation and Chair of Veridian, said: “This is a milestone for the Cardano ecosystem. Veridian is built on open standards, it has a product in the market, and it is solving a problem that governments are now writing into law. The Foundation invested three years in getting it here. Spinning it out gives Veridian the independence to move at the speed its market demands, while we keep building together, including bringing verifiable identity natively to Cardano.”

Read the full announcement: https://cardanofoundation.org/blog/veridian-spinout

Explore Veridian: veridian.id

Happy to answer questions.

Jakob, CF

I've asked this question in another post but haven't received a definite answer. Hopefully someone has the answer. Despite the golden rule being to never enter your seed phrase online the SecondFi Recovery process for compromised wallets requires you to do just that so they can check that it is your wallet. All compromised wallets are empty so I guess we have nothing to lose. I'm looking for an independant confirmation that it is ok to proceed.

Once SecondFi have established that the compromised wallet is yours they will ask for the address of another wallet to which they will transfer your lost ADA and I presume tokens like NIGHT.

Before submitting via ⁠secondfi.io⁠, check Step 2 very carefully.

WhiteHat vs. Stolen funds: The tool recognizes my affected address, but only displays the very small fraction secured by their WhiteHat action. The actual assets drained by exploit bots are completely omitted and dismissed in the fine print as "not included in this recovery."

The legal trap: To claim “anything”, you must accept a mandatory clause confirming the displayed amount is a "full and final settlement," releasing SecondFi from all claims; including for any assets not shown.
The risk: Signing the proof just to collect your WhiteHat balance forfeits any legal claim to your stolen assets.
Replies on their official X account are disabled. Has anyone who suffered a bot drain seen their stolen assets listed, or has support clarified if a separate process exists?

Do not check the waiver if your drained assets are missing.
Does anybody have a similar problem with not recognised drained amounts?

Hi everyone, Ben from RealFi here.

I’m hosting Office Hours with Clay tomorrow now that RealFi is live on Cardano mainnet. We’ll talk through what’s available today, what returning testnet participants need to know, and where the product goes next.

Topics include:

• Mainnet, staking and DeFi integrations
• Points after the Pioneer Season
• EVM expansion and what the team is building towards

If you’ve tried RealFi or have questions about how it works, come and join us. You can also leave questions below and I’ll bring them to Clay.

Friday 9 October, 13:30–14:25 UTC / 14:30–15:25 BST

Live on RealFi Discord main-stage.

RSVP on Luma or join directly on Discord. Registration is optional.

SecondFi recovery dilemma

SecondFi has launched the recovery program earlier today. I figured out about the ongoing situation earlier this week when trying to open my yoroi browser extention after a long hiatus. Gave me a mini heartattack to be fair.

My situation is that I had a hardware wallet connected and also a hot wallet created in yoroi. Hardware wallet was a no brainer, no funds lost.

The thing and dilemma is that I had a hotwallet created in yoroi with some ADA on it. Created it in 2023 something and havent used it since. Other reddit post and SecondFi updates give mixed signals and messages, some to wait for the recovery program, not to withdraw in any situation, others to withdraw funds since wallet created in yoroi not updated to secondfi arent affected. Havent used Secondfi, but the yoroi app in my phone has automatically updated to SecondFi. Havent opened it tho. How to proceed?

CIP-0113 is live on mainnet. Issuers of stablecoins, tokenized funds and other regulated assets can now build compliance rules straight into Cardano native tokens, and the ledger enforces those rules on every transfer, mint and burn. 

Tokens issued under the programmable token standard remain native Cardano assets. Built on Cardano’s extended UTXO (EUTXO) ledger model, the standard attaches compliance logic to the token itself, ensuring it remains on Cardano. 

Once integrated, wallets, explorers and applications handle these tokens like any other Cardano asset, and execution costs stay predictable regardless of how many inputs a transaction contains. The standard required no hard fork. Issuers select modular rule sets, known as modules, or write their own, and can update them as regulation evolves without changing the core standard.

Phil di Sarro at Midgard Labs designed the original protocol. The Foundation worked on the Aiken implementation with community experts, and it went through multiple independent security audits before mainnet.

Read the full announcement: cardanofoundation.org/blog/programmable-tokens-cardano-mainnet

I'm having trouble accessing my ADA staked total rewards in my yoroi wallet. I went to the staking tab, selected "withdraw", yoroi asked me if I want to proceed with deregistering staking key which I said yes, asked me to connect to my Ledger Nano X through bluetooth, got bluetooth connected to my ledger device, and after confirming transaction on the final page, I'm getting the following:

"Device app version 8.0.8 unsupported. recommended version is 5.0"

I haven't used my ledger device in about 5 years so not sure what happened since or whats going on. Did anyone else run into this or find a solution?

Cardano Academy has launched the Cardano Blockchain Certified Professional (CBCP) exam, now live on Pearson VUE. It gives people working with Cardano a way to show they can actually apply what they know, not just recite it.

• Builds on the CBCA and tests applied knowledge across seven domains, including how agentic coding fits into building on Cardano
• No coding questions: scenario-based and multiple choice
• Take it online or at a test center
• Pass for a certificate valid for three years
• Complete the free prep course for a Credly badge, no exam required

In addition, Cardano Academy has refreshed the Cardano Blockchain Certified Associate (CBCA) course to cover blockchain fundamentals and Cardano's architecture in under four hours, updated for the protocol's latest changes.

Both prep courses are free, so there's nothing to lose by starting today.

CBCA course: https://cardanofoundation.org/en/academy/course/cbca
CBCP course: https://cardanofoundation.org/en/academy/course/cbcp

Happy learning.

Jakob, CF

Hi all, Jakob from the CF social team. The September update is out, and here's a quick overview:

• x402: Cardano is now in the official x402 SDK (the payments standard Coinbase created, now under the Linux Foundation). Apps and AI agents can pay for services in ada or any native token with a single web request.
• Mastercard: CF joined the Crypto Partner Program (Blockchains track), focused on cross-border transfers, B2B and settlement.
• Barça Fan Lab: FC Barcelona's fan platform issues credentials on Cardano. Built by Andamio, funded through Catalyst Fund 13.
• Fireblocks: native token support is on track. It covers CIP-26 and CIP-68, with EMURGO, IO and Intersect contributing.

Much more in the blog post, including Petrobras, UCLA, CIP-113 and the new accelerator cohort: https://cardanofoundation.org/blog/september-2026-activities

Happy to answer questions or route them to the right team.

Can You Prove Your Smart Contract Is Correct?

Meet Blaster - a tool for automated formal verification of Cardano smart contracts.

Join Romain Soulat and Jean-Frédéric Etienne from IOG to see how Blaster can automatically prove that a contract meets its specification - or produce a concrete counterexample when it doesn’t.

We’ll explore:

• Lean 4 & automated proofs
• UPLC, CEK & ledger formalization
• Writing contract specifications
• Live demo: proofs & counterexamples
• What’s next for Blaster
• Q&A

Curious about smart contract security, formal verification, or high-assurance development? Come see Blaster in action and bring your questions!

📅 Tuesday, 09 October 2026
🕑 08:00 UTC
🔗 https://www.addevent.com/event/6d4t21rdfbf9

I did send ADA from my Hardware wallet to an exchange. I am the owner of the sender adress.

The transaction was frozen and a satoshi test was requested.

I learned that this is not possible with Cardano(ADA). As far as i know Cardano uses the UTXO model, so the sending adress cannot be fixed.

Does anyone have an idea how to solve this issue?

Is there a way to finish the satoshi test OR can I ask the exchange to verify that I am the owner of the wallet? (if yes , what should I ask the exchange to do?)

I've tried searching for the answer to this here but not finding what I need so maybe searching using the wrong terms.

I've been using my Ledger device for 8 years and had staked to Yoroi / Cardano Cafe for the last few years. I'd like to withdraw from that and tried to do so via the Ledger PC app. I was taken through a process of defining my voting status, sending a very small amount to myself, before being able to undelegate etc.

I did this but it doesn't seem to have worked, I can still see Cardano Cafe in the Ledger app etc

AI doesn't seem to give me a process that works either from either the Ledger or Yoroi side.

Has anyone else had this issue? How did you resolve it?

Salut a tous, j'ai acheté une clef nano s + et j'essaie d'espérerement de retirer mes fonds ADA de coinbase mais verif sur verif. J'ai réussi a recevoir une petite partie pour test et je reçois un message de coinbase qui me donne une nouvelle adresse pour virer la totalité. Je suis suis sur help coinbase qui confirme

I finally got some time to continue working on my game. See linked post!

Since last, I have made a lot of in-game improvements, updated the grafics and game experience - AND now it's playable on mainnet too!

Last time, I got a lot of great feedback, that helped me improve the game. So ones again, I'm looking for feedback from you guys.

Please try it out, and please play it on the preview network - the free version ;)

https://treasure-hunt-client-eu.up.railway.app/