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Yrd. Doç. Dr. Dyt. Esin Şeker

Yrd. Doç. Dr. Dyt. Esin Şeker

13 Temmuz 2025 Pazar

Why Phantom Feels Like the Right Wallet for Solana dApps, Solana Pay, and NFT Markets

0

BEĞENDİM

ABONE OL

Okay, so check this out—I’ve been living in the Solana world for a while now. Wow! Some days it feels like you’re strapped to a rocket. My instinct said this would be messy at first. Seriously? Yes. But things smoothed out quicker than I expected, and there’s a practical rhythm to using wallets on Solana that surprised me.

Short version: you want speed, low fees, and an interface that doesn’t make you feel like you’re assembling a PC from scratch. Medium version: usability matters; integrations matter more. Long version: if your wallet clunks at every step, your user experience for DeFi positions, NFT drops, or point-of-sale microtransactions via Solana Pay will crater, even if the chain is fast, because friction kills product adoption—users bail when a pop-up asks them to approve a dozen tiny instructions they don’t understand.

First impressions and the small wins

When I first opened Phantom, it felt…friendly. Hmm. The extension popped up cleanly. No weird jargon. Nice. On one hand, there’s polish—icons, clear buttons, a pleasant theme. On the other hand, I kept probing: what about advanced activity? What about dApp connections that need multiple signatures? Initially I thought those would be clunky. Actually, wait—let me rephrase that: they were surprisingly streamlined once I learned the patterns.

Practical note: dApp developers build for wallets that follow two rules—consistent API behavior and predictable UX flows. Phantom mostly follows that. For a user, that translates to fewer confusing modals, fewer failed txs, and fewer moments where you mutter “what just happened?” while staring at a spinner. Something felt off the first week—metaplex NFTs had quirks—but those were edge cases more than the rule.

Here’s what bugs me about many wallets in general: they brag about features but hide the complexity. Phantom, by contrast, often surfaces the right bits. It’s not perfect. It’s not meant to be a Swiss army knife that does everything at once. But for DeFi app flows and marketplace checkouts, it’s very very solid.

dApp integration: the developer and user dance

Integration quality is two-sided. Developers need deterministic behavior. Users need simplicity. If either side trips, the whole thing falls apart. Hmm… the best dApps on Solana now assume wallets use the standard connection handshake and support pop-up signing. Phantom does this well. It’s fast. It supports session delegation patterns that reduce repeated signings. That matters.

From a developer perspective, Phantom offers useful provider hooks and a stable window messaging protocol. From a user perspective, that means fewer permission requests. Fewer prompts are always better. On one hand, security requires confirmations. On the other hand, endless prompts are annoying. Though actually, Phantom hits a middle ground: it lets you review the instruction set without showing you a dozen lines of raw program data—so you get clarity without cognitive overload.

My gut feeling about security: wallets that force non-stop confirmations often cause users to reflexively approve things. That’s dangerous. Phantom’s UX nudges review, and that nudging helps. I’m not 100% sure every user reads every approval, but the design reduces accidental approvals compared to most competitors.

Solana Pay: microtransactions that actually make sense

Solana Pay is quietly transformative. Small payments, instant settlement, negligible fees. Seriously—this is the lane where Solana shines. But only if wallets make the flow painless. If every coffee purchase triggers a long approval stack, adoption stalls. Phantom’s approach to Solana Pay is pragmatic: sign, confirm, go. Fast. Minimal friction. That’s the whole point.

In practice, sellers can embed a payment request QR. Buyers scan. Phantom handles the signature handshake. I’ve used it in pop-ups at local meetups. Quick. Smooth. The seller gets a confirmed payment within seconds. For people who sell NFTs at IRL events or accept tips during shows, it’s a game changer. (Oh, and by the way… Solana Pay can also be used for merchant refunds and partial payments, but that requires some backend handling.)

NFT marketplaces: drops, wallets, and the UX trap

NFTs are where wallet UX often breaks. High-volume drops and instructions that bundle metadata and token creation can create confusing permission stacks. Phantom’s integration with marketplaces usually keeps the UX coherent: it shows the expected approval and groups related actions. That matters during mints when gasless or low-fee operations are racing to complete.

I remember a mint where three separate tabs were vying for my attention. My head spun. Not all wallets deal with that gracefully. Phantom kept things linear enough that I could follow what I was signing. My instinct said “do not approve until you check,” and the wallet’s interface made that feasible. There’s still room for improvement—like clearer native indicators of which program you’re approving—but the baseline is strong.

User approving an NFT mint in a wallet popup

Where Phantom stands out—and where it doesn’t

Pros: smooth dApp handoff, simple Solana Pay flow, neat NFT drop handling, and clean UX. Cons: advanced power users might miss lower-level controls, and occasionally the UX hides too much detail for forensic inspection. I’m biased, but for 90% of users in the Solana ecosystem, Phantom hits a sweet spot between safety and convenience.

One real advantage is the ecosystem effect. Because many popular dApps optimize for Phantom, integrations are tighter and less error-prone. That network effect compounds. Initially I thought it was just marketing. Actually, wait—it’s partly product-market fit. Developers like predictable behavior. Wallets that deliver that get integrated more often. The loop self-reinforces.

Need to set up a wallet fast? Download and connect phantom wallet, fund it, and you can be trading, minting, and paying in minutes. It really eliminates the onboarding friction for newcomers. But remember: custody means responsibility. Keep your seed safe. Seriously—write it down somewhere offline.

FAQ

Can Phantom handle recurring or delegated payments?

Short answer: not natively like a bank autopay. Medium answer: there are programmatic ways to set up partial delegations or use smart contract logic for scheduled transfers. Long answer: most solutions require a program that manages a vault or uses a relayer; Phantom will sign those transactions when requested, but it won’t autonomously push funds without a trigger, and that’s by design to protect users.

Is Phantom safe for NFT storage?

Yes, with caveats. It’s as safe as your device and seed phrase. Use hardware wallet support if you hold high-value assets. Also, be mindful of signing arbitrary instructions from unknown dApps—phishing and rogue programs exist. Phantom helps by showing instruction details, but user attention is the last line of defense.

Alright. Here’s the takeaway: for folks in the Solana ecosystem who want a convenient, well-integrated wallet for DeFi interactions, Solana Pay purchases, and NFT marketplaces, Phantom is a pragmatic choice. It balances usability and security in a way that encourages adoption without sacrificing necessary guardrails. I’m not claiming it’s perfect. It has quirks—somethin’ will always bug me about any product—but it’s mature enough to be the default for many users.

So yeah—if you’re building or participating in Solana dApps and need a wallet that “just works” most of the time, give phantom wallet a shot. You might be surprised at how quickly it becomes invisible—in a good way—and lets you focus on the experience rather than wrestling the wallet.

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Proses Besin Nedir?

Proses Besin Nedir?
0

BEĞENDİM

ABONE OL

Son günlerin çok tartışılan konusu işlenmiş besinler. Dünyanın bir ucu açlık ve yoksullukla sınanırken diğer bir ucu besinlerden gördüğü zararı tartışıyor. Bizim ülkemizde her ikisi de var ne yazık ki. Hafızalarımızı yenileyelim diye yazıyorum. Nedir Proses besin veya işlenmiş besin?

Ultraproses besin -aşırı işlenmiş gıda-  endüstriyel işlemlerden geçmiş, doğada bulunmayan maddeler içeren ve genellikle besin değerinden çok lezzet, raf ömrü ve kullanım kolaylığı ön planda tutulan gıdalardır. Bu tür gıdalar genellikle çok sayıda katkı maddesi, şeker, tuz, yağ, renklendirici, tatlandırıcı ve koruyucu madde içerir. Hedefleri genellikle tat cazibesi yaratmak, dayanıklılığı artırmak ve hızlı tüketimi kolaylaştırmak üzerinedir.

Ultraproses Gıdaların Özellikleri:

  • Endüstriyel olarak üretilmiÅŸ ve ambalajlıdır.
  • İçeriÄŸinde genellikle evde bulunmayan bileÅŸenler vardır. Maltodekstrin, glikoz ÅŸurubu, früktoz ÅŸurubu emülgatörler gibi.
  • Tat, doku, renk gibi duyusal özellikler yapay yollarla geliÅŸtirilmiÅŸtir.
  • Besin deÄŸeri düşüktür. Lif, vitamin, mineral ve antioksidan bakımından fakirdir.
  • Genellikle yüksek kalorilidir.
  • Fiyatları ucuz gibi görünse de aslında pahalı bir beslenmedir.
  • Obezite, diyabet, kalp hastalıkları gibi saÄŸlık sorunlarıyla iliÅŸkilidir.

 Ultraproses Gıdalara Örnekler:

  • Hazır atıştırmalıklar: Cips, kraker, paketli kurabiyeler
  • Gazlı ve ÅŸekerli içecekler: Kola, enerji içecekleri, hazır meyve suları
  • Hazır tatlılar: Paketli kekler, gofretler, pudingler
  • Hazır yemekler: DondurulmuÅŸ pizzalar, mikrodalga yemekleri
  • Sosis, salam, nugget gibi iÅŸlenmiÅŸ et ürünleri
  • Åžekerli kahvaltılık gevrekler
  • Toz içecek karışımları ve hazır çorbalar
  • Margarin

 Ultraproses Olmayan (Doğal veya Az İşlenmiş) Besinler:

  • Taze meyve ve sebzeler
  • KuruyemiÅŸler (tuzsuz ve kavrulmamış)
  • Sade yoÄŸurt ve süt
  • Yumurta
  • Baklagiller
  • Tam tahıllar
  • Evde hazırlanmış yemekler

Sağlıklı beslenmek için bilgi sahibi olmak ve var olan koşullarda en iyiyi yapabilmek kişisel emeğinize bağlı. Unutmayın bizim kültürümüzde evde yemek pişirilir, birlikte tüketilir ve hatta paylaşılır. Ne zaman bunlardan koptuk bilmiyorum.

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How I Track Tokens, DeFi Flows, and Wallets on Solana (Practical, No-Fluff)

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BEĞENDİM

ABONE OL

Whoa! I remember the first time a token transfer flashed by and I had no clue what it meant. My instinct said: this is important. Seriously? Yeah—because on Solana, a single transaction can ripple across dozens of accounts in seconds. Initially I thought block explorers were all the same, but then I dug into tooling, UX, and performance and realized they aren’t even close.

Here’s the thing. If you care about tokens, DeFi positions, or wallet behavior, you need fast, reliable traces. My bias is toward tools that show provenance clearly, not just balances. This part bugs me: too many trackers show numbers without telling the story behind them. On one hand you get raw data; on the other hand you get visualizations that gloss over crucial on-chain events. Though actually—some explorers now combine both, which helps a ton.

Quick practical tip: when scanning a token, look at mint activity first, then recent transfers, then program interactions. Hmm… that ordering saved me from chasing phantoms. Check the token’s supply changes. Check program logs. Follow the money, not the label—because labels lie sometimes, and they lie convincingly.

Screenshot of transaction inspection with token transfer highlighted

What I watch and why it matters

Short answer: provenance, program calls, and cross-account flows. Long answer: start with the mint address, then inspect each account interacting with that mint, and finally read the inner instruction logs to see which programs actually moved funds. My approach is hands-on. I open a few recent swaps or liquidity events and track instructions backwards. It feels like detective work—thrilling and occasionally maddening.

I use explorers that let me jump between accounts and programs without losing context. One useful resource is https://sites.google.com/walletcryptoextension.com/solscan-explore/ which I often consult for quick lookups and visual traces. I’m not pushing a product; I’m sharing what works. I’m biased, but that link has saved me hours more than once.

Wallet tracking matters because patterns reveal intent. Short trades repeated quickly? Maybe market making. Big one-off transfers to a cold wallet? Could be vesting or profit-taking. Watch timing. Watch counterparties. Somethin’ about repeated tiny transfers always looks suspicious to me. Also watch for program-derived addresses; they often mask the true logic flow behind a transaction.

Pro tip: set up alerts on on-chain events rather than price alerts. Yep. Alerts for token mints, account closures, or program upgrades catch unusual activity fast. They’re not perfect, but they beat waking up to a rugpull tweet. Very very simple to do if you use explorers with webhook integrations or built-in watchlists.

When evaluating DeFi analytics, don’t trust shiny dashboards alone. The aggregates can hide front-running, sandwich attacks, or odd slippage. Instead, inspect raw swap transactions around suspicious price moves. You can reconstruct the sequence: who swapped first, who took liquidity, and who paid the price. That sequence tells the story better than any chart.

Okay, so check this out—on Solana, transactions can include multiple inner instructions that involve several programs. If you only look at the outer instruction, you miss the meat. For example, a single “swap” might call a router, which then calls multiple pool programs and token transfers. The best explorers expose those inner calls. If yours doesn’t, switch.

I’m often asked about wallet privacy. Here’s my take: privacy on Solana is weak by default. Reuse of addresses, obvious chain-of-control, and program-derived addresses that tie behavior together make deanonymization straightforward if you know what you’re doing. On the flip side, that visibility is useful for auditors, DAO treasuries, and compliance teams—so it’s a trade-off. I’m not 100% sure where regulation will land, though, and that uncertainty is why monitoring tools are becoming more critical.

Workflow I use (step-by-step, practical)

First: identify the action I care about—transfer, swap, mint, or program upgrade. Second: open the transaction and expand inner instructions. Third: follow token accounts and PDAs to their owners. Fourth: cross-check with recent blocks and other associated transactions. Initially I thought this would be tedious each time, but with saved queries and watchlists it becomes routine and fast.

Tools that let you export CSVs or push JSON webhooks are invaluable for automation. I feed selected events into small scripts that flag anomalies. On weekends I’ll scan flagged events for patterns. That human step catches context machines miss—like when an airdrop suddenly looks targeted because of off-chain coordination. (oh, and by the way… sometimes you just need to ask in a Discord)

Also: don’t ignore token metadata. Metadata fetches often reveal project links, creators, and initial mint history. Those breadcrumbs matter when you’re vetting a token. But be wary—metadata endpoints can be spoofed, and some projects change official pages after launch, so cross-verify when in doubt.

FAQ

How can I spot a rugpull early?

Watch for sudden changes in token liquidity paired with large transfers to unknown wallets. Look at who added initial liquidity and whether they immediately transferred ownership. Also watch for token mint increases and account closures within tight time windows—those are red flags. My rule: if the team wallets are anonymous and liquidity is controllable, assume risk.

Which metrics matter most for DeFi health?

Liquidity depth, recent trade sizes, median slippage on typical trades, and number of unique LPs. Program upgrades and multisig changes also matter because they change trust assumptions. Don’t obsess over one metric; patterns across several indicators are more telling.

To wrap up—well, not wrap up exactly, because this is ongoing—use explorers that reveal inner instructions, set smart alerts, and follow token provenance. My approach is pragmatic: watch, automate, and validate. It sounds simple. In practice it requires patience and curiosity. Really—keep poking at things. You’ll learn patterns. You’ll miss some. And you’ll get better.

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Hangi besinler gıda zehirlenmesine yol açar?

Hangi besinler gıda zehirlenmesine yol açar?
0

BEĞENDİM

ABONE OL

Son günlerde gıda zehirlenmeleri yine gündemin önemli bir konusu haline geldi. Türk halkının başına gelmeyen kalmadı dediğimiz sırada, gıda zehirlenmesi de geldi.

Genellikle gıdalara bulaşan ve hastalık yapıcı etkisi olan mikroorganizmalar; iklim, hijyen koşullarındaki yetersizlik ve eksiklikler ve uygun olmayan saklama/işleme yöntemlerinden kaynaklanır.  Gıda kirlenmesinde, mikroorganizmaların besinlere bulaşması bozulmaya neden olur. Bu besinlerin tüketilmesiyle insanlar hastalanır  yani gıda zehirlenmesi olur.

En Sık Gıda Zehirlenmesine Neden Olan Besinler:

  1. Tavuk ve diÄŸer beyaz etler
    • Salmonella ve Campylobacter en yaygın bakteri türleri.
    • Yetersiz piÅŸirme, çiÄŸ veya az piÅŸmiÅŸ besin tüketimi riski artırır.
  2. Kırmızı et (özellikle kıyma)
    • DoÄŸru saklanmazsa E. coli gibi bakteriler geliÅŸebilir.
  3. Süt ve süt ürünleri (özellikle çiğ süt, çiğ sütle yapılan peynirler)
    • Listeria ve Salmonella riski vardır.
    • Pastörize olmayan ürünler tehlike oluÅŸturur.
  4. Yumurta (özellikle çiğ veya az pişmiş)
    • Salmonella riski taşıyabilir.
  5. Deniz ürünleri (özellikle midye, balık)
    • Uygun soÄŸuk zincir saÄŸlanmazsa gıda zehirlenmesine yol açabilir.
  6. Hazır salatalar, mayonezli mezeler
    • Oda sıcaklığında uzun süre bekletildiÄŸinde bakteri üreyebilir.
  7. Sokak yiyecekleri
    • Uygun olmayan hijyen koÅŸulları nedeniyle her tür sokak yiyeceÄŸi risk taşıyabilir.
  8. Konserve ürünler (özellikle ev yapımı)
    • Botulizm riski barındırır (nadir ama çok tehlikelidir).

Korunmak için neler yapılmalıdır?

Alışveriş Aşamasında:

  • Et, süt, balık gibi ürünleri son aÅŸamada sepete koy.
  • Son kullanma tarihini mutlaka kontrol et.
  • ÇiÄŸ ve piÅŸmiÅŸ ürünleri ayrı torbalarda taşı.

Hazırlık ve Pişirme Aşamasında:

  • ÇiÄŸ et ve sebzeleri aynı kesme tahtasında doÄŸrama.
  • Et, tavuk, yumurta gibi ürünleri iyice piÅŸir.
  • Elleri ve mutfak gereçlerini sık sık yıka.
  • Yumurta kabuÄŸunu yıkamak yerine dışını silerek kullan.

Saklama Aşamasında:

  • Buzdolabını 4°C’nin altında tut.
  • PiÅŸmiÅŸ yemekleri 2 saat içinde buzdolabına kaldır.
  • Buz çözdürme iÅŸlemini oda sıcaklığında deÄŸil, buzdolabında veya mikrodalgada yap.

Dışarıda Yemek Yerken:

  • Güvenilir ve temiz görünen yerleri tercih et.
  • Açıkta satılan ve çok beklemiÅŸ yiyeceklerden kaçın.
  • Su içeceksen kapalı ÅŸiÅŸede içmeye dikkat et.

Yaz aylarında gıda zehirlenmesi olguları daha da artar, hijyen kurallarına uymak kaçınılmaz bir gerekliliktir. Satın alma, hazırlama, pişirme ve saklama kurallarına riayet etmek ise şart olarak tanımlanabilir.

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Why Running a Bitcoin Full Node Still Matters — and How to Start One Right

0

BEĞENDİM

ABONE OL

Whoa! Okay, so check this out—running a full Bitcoin node is one of those things that sounds nerdy, but it actually protects you and the network. My gut said it was niche. But after years of poking at peers, configs, and weird disk behavior, I changed my mind. Initially I thought it was only for hardcore privacy nuts, but then I realized it’s a public-good muscle anyone can flex.

Really? Yes. A node validates transactions and enforces consensus rules. That keeps the ledger honest. It doesn’t custody your coins. It only gives you truth. For many folks that’s the point.

Here’s the thing. Not all nodes are equal. Some are glorified wallets. Others are full validators storing the entire blockchain and serving peers. If you care about sovereignty — and I’m biased, but you should — running a full node is the baseline move. It feels empowering in a way that’s hard to explain. Somethin’ about seeing the blocks stream in every day makes you less dependent on third parties…

Home rig with Bitcoin Core syncing on a monitor; cables, coffee mug, and sticky notes nearby

What a Full Node Actually Does (in plain terms)

Short version: it checks every block and transaction against the rules everyone agreed on. It refuses bad data. It shares valid data back to the network. If you run one, you help decentralize the system. On one hand it’s simple. On the other hand, running it reliably has real operational details you can’t ignore.

Initially I thought setup was the biggest hurdle, but later I realized bandwidth and storage management are the real chores. Actually, wait—let me rephrase that: setup is easy, but making it resilient is where the work begins. You need solid storage, a decent internet connection, and a plan for backups and updates. If you ignore updates, you might suddenly be out of consensus — yikes.

Practical note: Bitcoin Core is the reference implementation most node operators use. It’s mature and well audited. If you want a clean starting point, check this resource: https://sites.google.com/walletcryptoextension.com/bitcoin-core/ — I used similar docs when I first set mine up. That guide won’t babysit you, but it points you where you need to go.

Some people will tell you to run on a Raspberry Pi. Sure, that works for many. But think about long-term reliability. A small SSD in a Pi can wear down. A midrange NUC or refurbished desktop gives better I/O and longevity. Performance matters when you’re validating and relaying during chain reorganizations.

Hmm… power consumption matters too. If you’re in a place with high electricity costs, that adds up. I’ve run nodes in Chicago winters and summer heat, and thermal planning is non-trivial. Fans, dust, and UPS for graceful shutdowns — those details matter more than you’d guess.

On the privacy side, running Electrum or SPV wallets against your own node decreases leakage. But actually, you still need to configure wallets correctly. On one hand you have privacy gains. Though actually, if you link addresses to a custodial service, running a node won’t magically anonymize you. Privacy is layered and nuanced.

Here’s a quick checklist I use when setting up a node: secure the machine, allocate 500GB–2TB for the chain (depending on pruning), set port forwarding or use UPnP carefully, enable pruning if disk is tight, and script automatic backups of the wallet file if you use one. That’s the gist. But the devil lives in the details — and you will learn as you go.

Whoa! Seriously? Yep. Expect hiccups. Peers will flake. Your storage might truncate. Your ISP may block inbound connections (some do). My instinct said “just plug it in,” but real-world networks behave messily, especially with NATs and CGNAT. So plan for reachability: set a static local IP, forward port 8333 if you can, or use Tor for inbound connections if you’re edgy about privacy.

Maintenance rhythms are simple: update Bitcoin Core regularly, monitor disk health, prune if needed, and rotate backups. I’m not 100% sure of every edge case (I still cringe at one obscure mempool bug I fought), but that’s okay — you don’t need to be a kernel dev to keep a node useful.

And yes, the community matters. Join a local meetup or an online group. People trade tips about block pruning thresholds, indexers, and rollup services. That human exchange is where you pick up the soft skills: when to upgrade, which logs to watch, and how to restore after a drive failure. These are not glamorous, but they prevent nights of teeth-gnashing.

Node-Operator FAQ

How much bandwidth will my node use?

Typical non-pruned nodes can transfer tens to hundreds of gigabytes during initial sync. After that, expect a few GB per day depending on peer activity. Pruning reduces storage but not initial bandwidth; you still download the chain. Use metered caps and schedule initial sync during off-peak hours if needed.

Can I run a node on my home router with a Raspberry Pi?

Yes, many do. It’s low-cost and effective. But watch for SSD endurance and thermal limits. Consider an external powered SSD and check TRIM support. If uptime and resilience matter to you, bump up to a small dedicated box or co-locate with someone you trust.

Here’s what bugs me about some modern guides: they treat a node like an appliance — plug it in, and you’re done. That’s not accurate. Running a full node is an ongoing commitment of attention and a modest slice of resources. You’ll be rewarded, though. You gain sovereignty, you help the network, and every now and then you’ll get a satisfying hum as blocks arrive on schedule.

I’m biased toward practicality. So if you’re starting today, pick hardware that lets you grow. Plan for backups. Use documented configs. Talk to other node operators (online or at a coffee shop — local folks are great). And accept that you’ll hit weird errors; that’s part of the learning curve. It gets easier. It also gets more interesting.

One last honest note: running a node won’t make you immune to scams or bad operational security. It won’t stop a phishing attempt. It will, however, let you verify the truth of the blockchain yourself — and that, in my view, is worth the effort.

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