Video wird geladen...

Video konnte nicht geladen werden

Zur Startseite

three months ago we started building epoch. as an experiment and ended up winning the Solana privacy hackathon, which landed us a sponsored NS trip by Superteam to keep building epoch from there. after arriving, it was a real rollercoaster, and the last month was especially hard, which is...

dotsvm's profile picture

.svm

1,640 subscribers

10,227 Aufrufe • vor 3 Monaten •via X (Twitter)

LIVE

Anya Rossi• Live Now

Private livecam show

0 Kommentare

Keine Kommentare verfügbar

Kommentare vom Original-Post werden hier angezeigt

Ähnliche Videos

CEO of phygitals explains why they chose to build on Solana "I think one thing Solana does really well and they're hard to beat at is both foundation and ecosystem support from builders and founders. They have the Superteam initiative, which is a great initiative where you can get tons of resources and learnings and free resources to build. And then the general community and collector community within Solana is very vibrant. Our whole go to market was pretty much utilizing ungraded/cheap Pokémon cards that we acquired while we didn't have much funding or profits. We gave these out to top Solana NFT communities and through the liveliness in the ecosystem, Phygitals was created. The initial user base was all Solana NFT collectors or traders and in that sense they have such a large user base, which makes it incredibly easy to build on."
1:01

CEO of phygitals explains why they chose to build on Solana "I think one thing Solana does really well and they're hard to beat at is both foundation and ecosystem support from builders and founders. They have the Superteam initiative, which is a great initiative where you can get tons of resources and learnings and free resources to build. And then the general community and collector community within Solana is very vibrant. Our whole go to market was pretty much utilizing ungraded/cheap Pokémon cards that we acquired while we didn't have much funding or profits. We gave these out to top Solana NFT communities and through the liveliness in the ecosystem, Phygitals was created. The initial user base was all Solana NFT collectors or traders and in that sense they have such a large user base, which makes it incredibly easy to build on."

Solana

48,231 Aufrufe • vor 4 Monaten

Crypto meets robotics. Superteam Georgia member's CrowdBrain on building on Solana and becoming the Colosseum grand champion: "When I started at Solana, I knew no one. We became hackathon winners in 2021, and we built one of the biggest gaming projects on Solana ever. You have to manifest it and put the work in, and everything's gonna happen." "Crypto allows you to create network effects and coordinate on a decentralized network. Robotics is missing the human layer. Robotics companies need humans to train robots, control them remotely, and collect real world data. Crowdbrain gives them trained operators and the infrastructure to do that at scale."
2:22

Crypto meets robotics. Superteam Georgia member's CrowdBrain on building on Solana and becoming the Colosseum grand champion: "When I started at Solana, I knew no one. We became hackathon winners in 2021, and we built one of the biggest gaming projects on Solana ever. You have to manifest it and put the work in, and everything's gonna happen." "Crypto allows you to create network effects and coordinate on a decentralized network. Robotics is missing the human layer. Robotics companies need humans to train robots, control them remotely, and collect real world data. Crowdbrain gives them trained operators and the infrastructure to do that at scale."

Solana

93,050 Aufrufe • vor 1 Monat

Ugh, keep seeing the really boring "Simulation Theory" popping up on my feed. Don't you know the Hindus have been talking about a simulation theory since at least 3,000 years ago? We're currently in the final epoch known as Kali Yuga. It's the most violent, corrupt and degenerate epoch, which is why life is currently so terrible. By the end of it all, the entire universe is destroyed and then the Atman/Brahman wakes up from his illusion.
0:25

Ugh, keep seeing the really boring "Simulation Theory" popping up on my feed. Don't you know the Hindus have been talking about a simulation theory since at least 3,000 years ago? We're currently in the final epoch known as Kali Yuga. It's the most violent, corrupt and degenerate epoch, which is why life is currently so terrible. By the end of it all, the entire universe is destroyed and then the Atman/Brahman wakes up from his illusion.

Simpsons Daily Glavins

51,071 Aufrufe • vor 5 Monaten

Mert on why you build on Solana, live at Solana Summit Serbia: "You really don't have another choice today. There is no chain that can do more scale, that has incubated more startups disproportionately given the market cap, that has all the liquidity concentrated in one venue." "Core devs are already bringing block times down to 300 milliseconds, which was 400 a few weeks ago. More activity onchain means more financial activity, more users, more startups, more funding. It's the flywheel of creating the Silicon Valley." "Why Solana? It's by far the best in scalability, performance, and startup ethos. Failing is accepted here because you can just get up and try again." "And we have some pretty good memes." mert Superteam Balkan Solana Summit
1:37

Mert on why you build on Solana, live at Solana Summit Serbia: "You really don't have another choice today. There is no chain that can do more scale, that has incubated more startups disproportionately given the market cap, that has all the liquidity concentrated in one venue." "Core devs are already bringing block times down to 300 milliseconds, which was 400 a few weeks ago. More activity onchain means more financial activity, more users, more startups, more funding. It's the flywheel of creating the Silicon Valley." "Why Solana? It's by far the best in scalability, performance, and startup ethos. Failing is accepted here because you can just get up and try again." "And we have some pretty good memes." mert Superteam Balkan Solana Summit

Solana

133,180 Aufrufe • vor 5 Tagen

Solana Signal Series: Episode 1 with Arcium ☂️ is now out Host: Lena Guest: Yannik Schrade (☂️) (CEO of Arcium) Produced by: Proof of Coverage Media 🥷 We discuss: • Making any public Solana token private via C-SPL • Balancing privacy and transparency for reputation • How privacy & encryption can level up ICOs Special thanks to Solana Spaces for hosting us! Timestamps: 00:00 - Introduction 00:25 - What is Arcium? 01:05 - Focus on Solana 01:17 - Balancing Privacy and Disclosure 02:24 - Encrypted Computing and Transparency 03:57 - Reputation in a Private World 05:15 - The Role of ICOs Today 06:25 - Breakpoint and Mainnet Launch Watch the full episode 👇🏻
7:00

Solana Signal Series: Episode 1 with Arcium ☂️ is now out Host: Lena Guest: Yannik Schrade (☂️) (CEO of Arcium) Produced by: Proof of Coverage Media 🥷 We discuss: • Making any public Solana token private via C-SPL • Balancing privacy and transparency for reputation • How privacy & encryption can level up ICOs Special thanks to Solana Spaces for hosting us! Timestamps: 00:00 - Introduction 00:25 - What is Arcium? 01:05 - Focus on Solana 01:17 - Balancing Privacy and Disclosure 02:24 - Encrypted Computing and Transparency 03:57 - Reputation in a Private World 05:15 - The Role of ICOs Today 06:25 - Breakpoint and Mainnet Launch Watch the full episode 👇🏻

LEGION

23,057 Aufrufe • vor 9 Monaten

Was trying to research and review the latest Solana Colosseum frontier hackathon submissions. After checking 5 projects, it was too much of a hassle and I decided to change something. So I built the Tiktok but for Colosseum submissions. Now I can: - Swipe through demo videos effortlessly - Check all links & descriptions instantly - Search & filter by category, country, name - Save favorites + add notes - Speed up, rewind, fullscreen and more. Here I'm scrolling through submissions on my Seeker | Solana Mobile. This is the most fun I’ve had reviewing and exploring projects by far!
1:03

Was trying to research and review the latest Solana Colosseum frontier hackathon submissions. After checking 5 projects, it was too much of a hassle and I decided to change something. So I built the Tiktok but for Colosseum submissions. Now I can: - Swipe through demo videos effortlessly - Check all links & descriptions instantly - Search & filter by category, country, name - Save favorites + add notes - Speed up, rewind, fullscreen and more. Here I'm scrolling through submissions on my Seeker | Solana Mobile. This is the most fun I’ve had reviewing and exploring projects by far!

Erwin

14,839 Aufrufe • vor 3 Monaten

"From a stablecoin perspective, we did over 10 trillion U.S. dollars worth of stablecoin money movement last year alone. We do on average way over 3,000 transactions per second. And this is in practice, this is not in theory." Maya of Solana Foundation on the ecosystem case for building payments on Solana. "We already have these big payment companies and institutions around the world leveraging Solana, and that gives you optionality." "When you start to talk about Solana from an ecosystem perspective, it truly is unmatched, a leader across multiple verticals, from DeFi to tokenized RWAs to payments."
1:24

"From a stablecoin perspective, we did over 10 trillion U.S. dollars worth of stablecoin money movement last year alone. We do on average way over 3,000 transactions per second. And this is in practice, this is not in theory." Maya of Solana Foundation on the ecosystem case for building payments on Solana. "We already have these big payment companies and institutions around the world leveraging Solana, and that gives you optionality." "When you start to talk about Solana from an ecosystem perspective, it truly is unmatched, a leader across multiple verticals, from DeFi to tokenized RWAs to payments."

Stabledash

14,618 Aufrufe • vor 2 Monaten

An RWA Marketplace bringing the $2.7 trillion Agriculture Industry on chain. Recently, the Head of Institutional Growth of Solana, Nick Ducoff, has been mentioning $AGRI alongside Baxus and $ONDO as the prominent RWA projects within the Solana ecosystem. For me, personally, I think that this project stands out in terms of market opportunities having a real impact in the world as we know it. The agricultural market is very inefficient, opaque and could use blockchain to improve the quality of the processes significantly, which, from an investor perspective, is interesting as you can start allocating funds across the globe and get yield from those investments. $AGRI is still a micro-cap, but given that it's one of the few working within the agricultural sector and building a real RWA project on Solana, I'm definitely keeping this one on the radar.
0:26

An RWA Marketplace bringing the $2.7 trillion Agriculture Industry on chain. Recently, the Head of Institutional Growth of Solana, Nick Ducoff, has been mentioning $AGRI alongside Baxus and $ONDO as the prominent RWA projects within the Solana ecosystem. For me, personally, I think that this project stands out in terms of market opportunities having a real impact in the world as we know it. The agricultural market is very inefficient, opaque and could use blockchain to improve the quality of the processes significantly, which, from an investor perspective, is interesting as you can start allocating funds across the globe and get yield from those investments. $AGRI is still a micro-cap, but given that it's one of the few working within the agricultural sector and building a real RWA project on Solana, I'm definitely keeping this one on the radar.

Michaël van de Poppe

26,996 Aufrufe • vor 1 Jahr

Meet Treize B, a 13 years old boy who flew from Tunisia with his dad using their saving to attend the Paris Blockchain Week hackathon. Curious, ambitious and driven, he showed up and shipped like crazy so Superteam supported him on his Solana journey. We supported him to allow him to evolve in the best conditions: 🛠 A grant to upgrade his setup 🏛 Participation in the Colosseum with @Collaterize 💼 A paid internship at MetaWealth 🤝 And meaningful connections with mentors from the ecosystem 🎓 A place in the next alyra giosa Solana Batch to level up his skills Stories like this deserve to be told. Please give a warm welcome to Kamel, a new member of the Solana family ❤
2:04

Meet Treize B, a 13 years old boy who flew from Tunisia with his dad using their saving to attend the Paris Blockchain Week hackathon. Curious, ambitious and driven, he showed up and shipped like crazy so Superteam supported him on his Solana journey. We supported him to allow him to evolve in the best conditions: 🛠 A grant to upgrade his setup 🏛 Participation in the Colosseum with @Collaterize 💼 A paid internship at MetaWealth 🤝 And meaningful connections with mentors from the ecosystem 🎓 A place in the next alyra giosa Solana Batch to level up his skills Stories like this deserve to be told. Please give a warm welcome to Kamel, a new member of the Solana family ❤

Superteam France

173,847 Aufrufe • vor 1 Jahr

CircuitX started as an hackathon project at the Zypherpunk hackathon by Mert. After the hackathon I decided to continue building but without funding which made development really slow . A token got launched on BAGS some days ago and it generated some $ , which made the development of the first version of the private swap dex possible ! ( ) I have now applied for the Bags Grant to take this to the next stage and continue research/development of the private perp dex !!!! Excited to continue building ! FINN sincara Stuu
0:32

CircuitX started as an hackathon project at the Zypherpunk hackathon by Mert. After the hackathon I decided to continue building but without funding which made development really slow . A token got launched on BAGS some days ago and it generated some $ , which made the development of the first version of the private swap dex possible ! ( ) I have now applied for the Bags Grant to take this to the next stage and continue research/development of the private perp dex !!!! Excited to continue building ! FINN sincara Stuu

mankind

11,799 Aufrufe • vor 6 Monaten

.Amira V explains why Solana usage could explode over the next 5 years “Stablecoin growth has been through the roof. We saw $2T in stablecoin transfers this quarter on Solana, and that’s just going to accelerate.” “Real world assets on Solana have 10x’d. If you look at the scale of the global economy, you’re just going to see exponential growth in use of the system.” “A lot of people are choosing to build on Solana. When you look three to five years from now, we should expect a lot more usage.” “We really cannot predict where things are going to be in three to five years. All we know is this technology makes sense, the infrastructure is ready, the ecosystem is very rich.”
0:56

.Amira V explains why Solana usage could explode over the next 5 years “Stablecoin growth has been through the roof. We saw $2T in stablecoin transfers this quarter on Solana, and that’s just going to accelerate.” “Real world assets on Solana have 10x’d. If you look at the scale of the global economy, you’re just going to see exponential growth in use of the system.” “A lot of people are choosing to build on Solana. When you look three to five years from now, we should expect a lot more usage.” “We really cannot predict where things are going to be in three to five years. All we know is this technology makes sense, the infrastructure is ready, the ecosystem is very rich.”

Solana

66,231 Aufrufe • vor 3 Monaten

Mert predicts Solana will become the biggest onchain economy "I do see a very viable path in which Solana makes another very gradual but very consistent run as it keeps releasing these things" "As World releases onchain prediction markets, as Backpack continues to list more assets, as Helius gives institutions and payment providers the tools they need, as wallets improve, and borrow and lend and RWAs consistently budge up" "There is a moment where you look back a year from now and think I was only focusing on the candles on TradingView and I missed that this is now undoubtedly the biggest economy"
1:02

Mert predicts Solana will become the biggest onchain economy "I do see a very viable path in which Solana makes another very gradual but very consistent run as it keeps releasing these things" "As World releases onchain prediction markets, as Backpack continues to list more assets, as Helius gives institutions and payment providers the tools they need, as wallets improve, and borrow and lend and RWAs consistently budge up" "There is a moment where you look back a year from now and think I was only focusing on the candles on TradingView and I missed that this is now undoubtedly the biggest economy"

Solana

126,284 Aufrufe • vor 1 Monat

sharing 5 key takeaways from building pie.fun and winning at the Solana seoulana hackathon 1. validate and sharpen what we’re building Jesse | sanctum ☁️🇺🇸 told us that “real value of hackathon is validating your product” so over 3 days, we pitched pie.fun to dozens of people in 10+ versions and got to see what resonated the most. as a way for normies to trade more easily and traders/influencers to turn their thesis into investable products — was validated and that felt good 2. momentum rather than perfection multichain baskets have always been on our roadmap — Seoulana’s special track with Wormhole gave us the push to finally dive in. wormhole's infra was solid 👍 no way we could’ve shipped multichain in 2 days without it 😂 of course, we had plenty of bugs (we submitted 5 minutes before the deadline lol) but the whole point of hacking is PUSHING TO THE LIMIT without the fear of failing. fortunately, pie.fun won 1st place in Wormhole track 🫡 3. new protocols = new perspectives when you’re deep in your own build, it’s easy to lose sight of what’s happening elsewhere. thanks to Seoulana we explored every track — NCN, zBTC, LSTs. talking to sang.sol Justin moonman opened doors we didn’t even know were there. is just getting started — so excited to keep integrating, learning, and building with folks like them. 4. building is good. building together is even better 250+ builders, side by side, building all night. team Trepa flying in from overseas and pulled two all-nighters. seeing that level of commitment pushed our team to go harder as well. Solana is about building — and this weekend reminded us why we’re here. 5. more conviction than ever isn’t a side project. we’re here to build — and to stay. we want to make it easy for normies to get exposure to crypto narratives and people with alphas to let the world follow them. curated, simple, onchain ETFs — that’s the vision. and we’re just getting started. Lastly, shoutout to those we’re grateful for ❤️ 1. Anh Tran for showing us how great Superteam network is from the very beginning and leading us up to this point 🥰 2. Superteam Korea @scottleestkr Julia Kim @ICML for pulling this off. seoulana had the best environment to build and invited the best founders 👍 3. James Kim | Superteam KR for pushing us to participate (best decision ever) and introducing us to the world of Wormhole 4. @deepdownbelow13 Boosik | Orca 🌊 Michael Ho for giving us the best feedback from user and builder perspective 🙌 5. Chaerin Kim always there to help us untangle some tricky Solana bits 👩‍💻 Seoulana reminded us there’s a whole world of builders out there. we’re proud to be in that mix. 🥧 more to come.
1:05

sharing 5 key takeaways from building pie.fun and winning at the Solana seoulana hackathon 1. validate and sharpen what we’re building Jesse | sanctum ☁️🇺🇸 told us that “real value of hackathon is validating your product” so over 3 days, we pitched pie.fun to dozens of people in 10+ versions and got to see what resonated the most. as a way for normies to trade more easily and traders/influencers to turn their thesis into investable products — was validated and that felt good 2. momentum rather than perfection multichain baskets have always been on our roadmap — Seoulana’s special track with Wormhole gave us the push to finally dive in. wormhole's infra was solid 👍 no way we could’ve shipped multichain in 2 days without it 😂 of course, we had plenty of bugs (we submitted 5 minutes before the deadline lol) but the whole point of hacking is PUSHING TO THE LIMIT without the fear of failing. fortunately, pie.fun won 1st place in Wormhole track 🫡 3. new protocols = new perspectives when you’re deep in your own build, it’s easy to lose sight of what’s happening elsewhere. thanks to Seoulana we explored every track — NCN, zBTC, LSTs. talking to sang.sol Justin moonman opened doors we didn’t even know were there. is just getting started — so excited to keep integrating, learning, and building with folks like them. 4. building is good. building together is even better 250+ builders, side by side, building all night. team Trepa flying in from overseas and pulled two all-nighters. seeing that level of commitment pushed our team to go harder as well. Solana is about building — and this weekend reminded us why we’re here. 5. more conviction than ever isn’t a side project. we’re here to build — and to stay. we want to make it easy for normies to get exposure to crypto narratives and people with alphas to let the world follow them. curated, simple, onchain ETFs — that’s the vision. and we’re just getting started. Lastly, shoutout to those we’re grateful for ❤️ 1. Anh Tran for showing us how great Superteam network is from the very beginning and leading us up to this point 🥰 2. Superteam Korea @scottleestkr Julia Kim @ICML for pulling this off. seoulana had the best environment to build and invited the best founders 👍 3. James Kim | Superteam KR for pushing us to participate (best decision ever) and introducing us to the world of Wormhole 4. @deepdownbelow13 Boosik | Orca 🌊 Michael Ho for giving us the best feedback from user and builder perspective 🙌 5. Chaerin Kim always there to help us untangle some tricky Solana bits 👩‍💻 Seoulana reminded us there’s a whole world of builders out there. we’re proud to be in that mix. 🥧 more to come.

pepper

14,059 Aufrufe • vor 1 Jahr

Claynosaurz started as digital collectibles on Solana. Now the plan is to become a global franchise: "We started with digital collectibles. We moved into vertical short-form. Now these micro episodes are a look into longer-form content. The next steps are build out the show, hit a wider audience, build out the canon, build out the lore." "Amazon, YouTube, all the social media we do, these are all avenues to distribute the property and level up." "We're building this watch and collect paradigm. You watch this great series and collect digital collectibles as you go. It's distinct from Pokémon or other brands, and uniquely our own." We're going from an NFT project, to a Web3 franchise, to a globally recognized franchise. Those are the next steps ahead of us." Claynosaurz Generation Infinity
2:00

Claynosaurz started as digital collectibles on Solana. Now the plan is to become a global franchise: "We started with digital collectibles. We moved into vertical short-form. Now these micro episodes are a look into longer-form content. The next steps are build out the show, hit a wider audience, build out the canon, build out the lore." "Amazon, YouTube, all the social media we do, these are all avenues to distribute the property and level up." "We're building this watch and collect paradigm. You watch this great series and collect digital collectibles as you go. It's distinct from Pokémon or other brands, and uniquely our own." We're going from an NFT project, to a Web3 franchise, to a globally recognized franchise. Those are the next steps ahead of us." Claynosaurz Generation Infinity

Solana

147,638 Aufrufe • vor 1 Monat

Introducing Axis Validator. We’ve been quietly operating a validator on Solana Mainnet. Today, we’re making it public. 108K+ SOL delegated. Current uptime: 100%. Axis started at the application layer, building DTFs for Solana users. Now, we’re expanding our contribution to the validator layer. From today, we’ll share our performance, operational notes, and native staking education as we grow in public from Japan. From apps to infrastructure.
0:30

Introducing Axis Validator. We’ve been quietly operating a validator on Solana Mainnet. Today, we’re making it public. 108K+ SOL delegated. Current uptime: 100%. Axis started at the application layer, building DTFs for Solana users. Now, we’re expanding our contribution to the validator layer. From today, we’ll share our performance, operational notes, and native staking education as we grow in public from Japan. From apps to infrastructure.

Axis

18,684 Aufrufe • vor 16 Tagen

.Claynosaurz Co-Founder Cab 🌋 on why they chose Solana "It felt like a decentralized Silicon Valley. Clusters of team-building startups, then clusters of devs branching out and building other startups. Everyone knew everyone." "There was beautiful cross-pollination between the tech startups being built on Solana and the NFT and art communities. It had culture." "You need tech, you need art, and you need NFTs, which I always felt were the nightclubs in a city." "We're growing an entertainment brand targeted for mass consumption. It's very hard to do that if there's a lot of friction." "Solana felt right for us because we wanted to do experiences. We wanted to entertain people. Gamified collectible loops. Exploring what it means to put assets inside games onchain."
2:17

.Claynosaurz Co-Founder Cab 🌋 on why they chose Solana "It felt like a decentralized Silicon Valley. Clusters of team-building startups, then clusters of devs branching out and building other startups. Everyone knew everyone." "There was beautiful cross-pollination between the tech startups being built on Solana and the NFT and art communities. It had culture." "You need tech, you need art, and you need NFTs, which I always felt were the nightclubs in a city." "We're growing an entertainment brand targeted for mass consumption. It's very hard to do that if there's a lot of friction." "Solana felt right for us because we wanted to do experiences. We wanted to entertain people. Gamified collectible loops. Exploring what it means to put assets inside games onchain."

Solana

40,197 Aufrufe • vor 4 Monaten

I was flying through the Yukon on my way from Alaska to Idaho, when we hit a nasty thunderstorm. Had to land on the side of the highway. Got picked up by some Albertan sheep hunters who let us stay at their camp. Same time, a Russian kid flying an old Stinson lost his engine and landed on the highway a mile up from us. Went and picked him up too. We all went to the hotspring for a dip, got very intoxicated around the campfire, and the next morning we took off with +1 Russian kid in the plane. Dropped him off in a farm field outside Calgary, he walked to a town and caught a cab to the airport. Good time and good dudes. Liberate Alberta.
1:52

I was flying through the Yukon on my way from Alaska to Idaho, when we hit a nasty thunderstorm. Had to land on the side of the highway. Got picked up by some Albertan sheep hunters who let us stay at their camp. Same time, a Russian kid flying an old Stinson lost his engine and landed on the highway a mile up from us. Went and picked him up too. We all went to the hotspring for a dip, got very intoxicated around the campfire, and the next morning we took off with +1 Russian kid in the plane. Dropped him off in a farm field outside Calgary, he walked to a town and caught a cab to the airport. Good time and good dudes. Liberate Alberta.

Homestead Pilot

489,587 Aufrufe • vor 1 Monat

XP is a secondary ticket marketplace built on Solana. Founder Mike Saunders on the company's early NFT-ticketing thesis, and where it ran into friction with mainstream users. "We've been on Solana from the beginning. We won Grizzlython's Consumer Track in 2023." "We were too early in a lot of the Solana time. Your identity was your wallet, your payment was your stablecoin. Letting normies manage that on their own was a little bit of a leap too far." "So we've purposely taken the word crypto or blockchain off of the website, and our conversion has gone up as we've done more of that." Michael Saunders, Founder & CEO of XP
1:14

XP is a secondary ticket marketplace built on Solana. Founder Mike Saunders on the company's early NFT-ticketing thesis, and where it ran into friction with mainstream users. "We've been on Solana from the beginning. We won Grizzlython's Consumer Track in 2023." "We were too early in a lot of the Solana time. Your identity was your wallet, your payment was your stablecoin. Letting normies manage that on their own was a little bit of a leap too far." "So we've purposely taken the word crypto or blockchain off of the website, and our conversion has gone up as we've done more of that." Michael Saunders, Founder & CEO of XP

Stabledash

20,885 Aufrufe • vor 1 Monat