ETHEUR
Ethereum / Euro
cryptoComposite

I used to spend ETH before but now I mostly stick to USDT for everyday stuff. Just makes more sense to me with the price being stable. I use Oobit for payments so I can still spend either one when I want

I had small balances in several exchanges that went busted like Celsius and Blockfi... Like BTC and ETH in amounts smaller than gas fees, I imagined a MTGOX scenario getting several grands in a few decades but no, I got my pennies back in time... Lol

Are stablecoins becoming more useful than ETH for everyday payments?

Hey r/NFT, While the NFT landscape has largely rotated between 10k generative PFP mints and speculative memecoins, we set out to explore the opposite extreme through an ongoing open experiment: \*\*Can a radical, hyper-minimalist digital artifact be created, deployed on Ethereum, listed for $1,000,000 (413.00 ETH), and positioned for fine art institutions and digital collectors using a coordinated team of AI agents as technical auditors, legal counselors, and curatorial researchers?\*\* Here is our honest breakdown of the journey so far: the conceptual premise, the unexpected technical breakdowns we hit with on-chain EIP-1155 and IPFS resolution, the regulatory minefields of the Howey Test, and where the challenge stands right now. \--- \### 1. The Premise: Inverting the Million Dollar Grid In 2005, Alex Tew launched the \*Million Dollar Homepage\*, carving a 1000×1000 screen into 1,000,000 ad units for $1 each. In 2021, digital creator Murat Pak auctioned \*The Pixel\* (a single 1×1 grey square #9A9A9A) at Sotheby's for $1.36 million. We wanted to push digital minimalism to its ultimate origin point: \*\*Black Pixel\*\*—a single, indivisible #000000 black pixel deployed as Token #1 on Ethereum Mainnet. \* No utility roadmap, no staking schemes, no speculative secondary tokens. \* Pure ontological reduction, immutable provenance, and the conceptual weight of screen coordinate zero. \--- \### 2. Technical Pitfalls & What Broke During Deployment We deployed an \`ERC1155Supply\` contract on Ethereum Mainnet (\`0xdafe69b04bb2ee097b6d483b2d272b3fbb519159\`, Token ID: 1, \`totalSupply = 1\`) and listed Token #1 on OpenSea via Seaport v1.6 for exactly \*\*413.00 ETH\*\* (\~$1M). During subsequent technical verification by our specialized agent team, several critical edge cases emerged: 1. \*\*The EIP-1155 vs. IPFS 404 Resolution Failure:\*\* \* The ERC-1155 specification dictates that client applications substitute the \`{id}\` parameter in metadata URIs with a 64-hex lowercase string padded with leading zeros (\`.../0000000000000000000000000000000000000000000000000000000000000001.json\`). \* However, our initial IPFS directory structure was pinned with decimal naming (\`/1\`). \* When standard clients queried the URI using hex padding, public gateways returned an immediate \*\*HTTP 404 Not Found\*\*. The artwork metadata appeared broken. We resolved this by auditing gateway behaviors, configuring dedicated Pinata gateway resolution for the decimal route, and publicly documenting the resolution mechanics in our technical dossier. 2. \*\*Vector vs. 69-Byte Raster Bitmap:\*\* \* Early draft descriptions inadvertently referred to the piece as a "vector artwork." In reality, the on-chain URI resolves to a physical, 8-bit RGB raster PNG measuring 1×1 pixel and weighing exactly \*\*69 bytes\*\*. In high-stakes digital art, precision is non-negotiable. We revised every marketplace field and curatorial entry to guarantee byte-level accuracy. 3. \*\*Public Gateway Throttling:\*\* \* Automated scrapers and bots frequently hammered public gateways (\`ipfs.io\`, \`cloudflare-ipfs\`), producing transient HTTP 429 and 403 errors. We deployed a static curatorial mirror on Vercel with cryptographic SHA-256 and IPFS CID verification to ensure uninterrupted access. \--- \### 3. Legal & Regulatory Guardrails: Avoiding the SEC's Crosshairs Publicly challenging the market with a $1,000,000 listing triggers immediate regulatory obligations under US securities and digital property law: 1. \*\*Howey Test Neutralization:\*\* \* Any marketing promising "investment returns," "secondary liquidity," or "value accrual through developer efforts" risks classification as an unregistered investment contract. \* We structured the entire offering strictly as conceptual Fine Art sold on an \*\*AS-IS\*\* basis, with zero guarantees of resale liquidity or future financial yield. 2. \*\*The "Audit" Terminology Trap:\*\* \* Early internal documents were titled "Security Audit." Our legal analysis promptly struck this: an internal multi-agent code analysis does NOT constitute a formal third-party audit from an accredited firm (like OpenZeppelin or Trail of Bits). Labeling it an "audit" would mislead collectors. We re-classified all documentation as a \*Curatorial & Technical Dossier\*. 3. \*\*Smart Contract Transparency:\*\* \* The Seaport listing is signed directly by the creator address. There are no secondary royalty traps, no hidden treasury splits, and no custodial third parties. It is an atomic, immutable settlement: ETH transfers to the seller, and Token #1 transfers to the buyer. \--- \### 4. Current Status of the Challenge \* \*\*On-Chain Artifact:\*\* Ethereum Mainnet Contract \`0xdafe69b04bb2ee097b6d483b2d272b3fbb519159\` is live and verified. \* \*\*OpenSea Seaport Order:\*\* Active at 413.00 ETH. \* \*\*Curatorial Dossier:\*\* Publicly accessible at \`https://black-pixel-1x1.vercel.app/dossier.html?ref=reddit\_ca\`. \* \*\*Institutional Outreach:\*\* We have initiated targeted dispatches to digital art institutions (such as MoCDA) and research publications (Digicult, Clot Magazine). \* \*\*Live Telemetry:\*\* Public logs and archival interactions are maintained live via \`@blackpixel1x1\` on X. \--- \### 5. The Question for the Community Can extreme conceptual reduction command serious value in an era saturated with algorithmic complexity, or has the market permanently pivoted toward token utility, staking yields, and social hype? We'd love to hear your perspectives, critiques, and feedback. The challenge remains live.

Hey r/NFT, While the NFT landscape has largely rotated between 10k generative PFP mints and speculative memecoins, we set out to explore the opposite extreme through an ongoing open experiment: \*\*Can a radical, hyper-minimalist digital artifact be created, deployed on Ethereum, listed for $1,000,000 (413.00 ETH), and positioned for fine art institutions and digital collectors using a coordinated team of AI agents as technical auditors, legal counselors, and curatorial researchers?\*\* Here is our honest breakdown of the journey so far: the conceptual premise, the unexpected technical breakdowns we hit with on-chain EIP-1155 and IPFS resolution, the regulatory minefields of the Howey Test, and where the challenge stands right now. \--- \### 1. The Premise: Inverting the Million Dollar Grid In 2005, Alex Tew launched the \*Million Dollar Homepage\*, carving a 1000×1000 screen into 1,000,000 ad units for $1 each. In 2021, digital creator Murat Pak auctioned \*The Pixel\* (a single 1×1 grey square #9A9A9A) at Sotheby's for $1.36 million. We wanted to push digital minimalism to its ultimate origin point: \*\*Black Pixel\*\*—a single, indivisible #000000 black pixel deployed as Token #1 on Ethereum Mainnet. \* No utility roadmap, no staking schemes, no future DAO token airdrops. \* Pure ontological reduction, immutable provenance, and the conceptual weight of screen coordinate zero. \--- \### 2. Technical Pitfalls & What Broke During Deployment We deployed an \`ERC1155Supply\` contract on Ethereum Mainnet (\`0xdafe69b04bb2ee097b6d483b2d272b3fbb519159\`, Token ID: 1, \`totalSupply = 1\`) and listed Token #1 on OpenSea via Seaport v1.6 for exactly \*\*413.00 ETH\*\* (\~$1M). During subsequent technical verification by our specialized agent team, several critical edge cases emerged: 1. \*\*The EIP-1155 vs. IPFS 404 Resolution Failure:\*\* \* The ERC-1155 specification dictates that client applications substitute the \`{id}\` parameter in metadata URIs with a 64-hex lowercase string padded with leading zeros (\`.../0000000000000000000000000000000000000000000000000000000000000001.json\`). \* However, our initial IPFS directory structure was pinned with decimal naming (\`/1\`). \* When standard clients queried the URI using hex padding, public gateways returned an immediate \*\*HTTP 404 Not Found\*\*. The artwork metadata appeared broken. We resolved this by auditing gateway behaviors, configuring dedicated Pinata gateway resolution for the decimal route, and publicly documenting the resolution mechanics in our technical dossier. 2. \*\*Vector vs. 69-Byte Raster Bitmap:\*\* \* Early draft descriptions inadvertently referred to the piece as a "vector artwork." In reality, the on-chain URI resolves to a physical, 8-bit RGB raster PNG measuring 1×1 pixel and weighing exactly \*\*69 bytes\*\*. In high-stakes digital art, precision is non-negotiable. We revised every marketplace field and curatorial entry to guarantee byte-level accuracy. 3. \*\*Public Gateway Throttling:\*\* \* Automated scrapers and bots frequently hammered public gateways (\`ipfs.io\`, \`cloudflare-ipfs\`), producing transient HTTP 429 and 403 errors. We deployed a static curatorial mirror on Vercel with cryptographic SHA-256 and IPFS CID verification to ensure uninterrupted access. \--- \### 3. Legal & Regulatory Guardrails: Avoiding the SEC's Crosshairs Publicly challenging the market with a $1,000,000 listing triggers immediate regulatory obligations under US securities and digital property law: 1. \*\*Howey Test Neutralization:\*\* \* Any marketing promising "investment returns," "secondary liquidity," or "value accrual through developer efforts" risks classification as an unregistered investment contract. \* We structured the entire offering strictly as conceptual Fine Art sold on an \*\*AS-IS\*\* basis, with zero guarantees of resale liquidity or future financial yield. 2. \*\*The "Audit" Terminology Trap:\*\* \* Early internal documents were titled "Security Audit." Our legal analysis promptly struck this: an internal multi-agent code analysis does NOT constitute a formal third-party audit from an accredited firm (like OpenZeppelin or Trail of Bits). Labeling it an "audit" would mislead collectors. We re-classified all documentation as a \*Curatorial & Technical Dossier\*. 3. \*\*Smart Contract Transparency:\*\* \* The Seaport listing is signed directly by the creator address. There are no secondary royalty traps, no hidden treasury splits, and no custodial third parties. It is an atomic, immutable settlement: ETH transfers to the seller, and Token #1 transfers to the buyer. \--- \### 4. Current Status of the Challenge \* \*\*On-Chain Artifact:\*\* Ethereum Mainnet Contract \`0xdafe69b04bb2ee097b6d483b2d272b3fbb519159\` is live and verified. \* \*\*OpenSea Seaport Order:\*\* Active at 413.00 ETH. \* \*\*Curatorial Dossier:\*\* Publicly accessible at \`https://black-pixel-1x1.vercel.app/dossier.html?ref=reddit\_ca\`. \* \*\*Institutional Outreach:\*\* We have initiated targeted dispatches to digital art institutions (such as MoCDA) and research publications (Digicult, Clot Magazine). \* \*\*Live Telemetry:\*\* Public logs and archival interactions are maintained live via \`@blackpixel1x1\` on X. \--- \### 5. The Question for the Community Can extreme conceptual reduction command serious value in an era saturated with algorithmic complexity, or has the market permanently pivoted toward token utility, staking yields, and social hype? We'd love to hear your perspectives, critiques, and feedback. The challenge remains live.

Not much in CSM itself, at least the original module. Right now our node shows it with 0 keys waiting to be deposited, and its last deposit was yesterday at 13:01 UTC. It's at a bit over 8% of Lido's stake against a 9% cap, so the flat line is a lack of new keys, not a backlog. The slow part comes after: the beacon chain entry queue is about 1.1M ETH, roughly 19 days. The new 0x02 module is the tight one, capped at 0.01% of Lido (about 970 ETH), with 30 validators deposited and 2 more waiting.

Method 1: The Bottom-Right Toggle Button (Fastest) 1. Look at the bottom-right corner of your chart interface (next to the time zone settings). 2. Find the button currently labeled RTH (Regular Trading Hours). 3. Click RTH once to switch it to ETH (Extended Trading Hours). Pre-market and post-market candles will immediately populate on your chart.

Lmao Grok thinks ETH target 18k by Jan 1-2027, and top bull market reaching 49,000$. Someone tell grok he’s smoking the nicest crack anyone’s ever seen.

There's now over 1.5 million ETH sent to the Ethereum 2.0 contract

Yes, and there is tons of liquidity on USDC to ETH swaps, so the impact trying to go to Monero would be way too high. Of course, they had to swap the money as soon as possible because the USDC would get frozen, so taking a loss on that swap was no concern. It's also just easier for USDC to ETH swaps to build liquidity because ETH has smart contracts and the token can be on ETH.

Depends heavily on where you live, so it's worth saying your country, but the general shape is pretty similar in a lot of places. In the US the IRS treats crypto as property, not currency. That means: - Every sale for dollars is a taxable event, and so is a crypto-to-crypto swap (trading ETH for SOL counts as selling the ETH). - Held a year or less, the gain is short-term and taxed at your normal income rate. Held longer than a year, it's long-term at the lower 0/15/20% capital gains rates. - Losses offset gains, and if losses win you can deduct up to $3,000 a year against regular income and carry the rest forward. - Fees generally get folded into your cost basis or reduce your proceeds, so keep them in your records. The part that bites active traders is record keeping. If you made hundreds of trades across a couple of exchanges, export the full trade history from each one now rather than in April, because you need the cost basis of every lot. Most people run the CSVs through a crypto tax tool and then check it against what the exchange reports. In the UK it's capital gains tax too, with a small annual tax-free allowance, and HMRC has its own pooling rules for working out cost. Other countries vary a lot, and a few don't tax personal gains at all, which is why the jurisdiction matters more than anything else here.

🌍 **Macro** U.S. equities suffered a sharp weekly pullback amid concerns over AI spending and corporate earnings. On Friday, the Nasdaq fell 2.86%, the S&P 500 dropped 1.82%, and the semiconductor index lost 7.2%. The Fed held rates at 3.75%–4.00%, though two officials favored a hike, adding pressure to risk assets. BTC also came under pressure following the $6.3B Binance hack, briefly touching $76.3K before recovering toward $78K. Institutional flows remain weak, with spot BTC and ETH ETFs recording $643M and $156M in net outflows on October 30, respectively. ⸻ 📈 **Market Snapshot** • BTC: $78,350.00 (+1.05%) • ETH: $2,275.28 (+0.88%) • NASDAQ: 25,437.00 (-2.86%) • S&P 500: 7,580.07 (-1.82%) • F&G: 37 (previous: 30) ⸻ 🧠 **Market Take** Binance withdrawal pressure has eased, but confidence remains fragile. During the first 9.5 hours after withdrawals gradually resumed on November 1, the exchange processed $4.649B in withdrawals and $1.01B in deposits, resulting in $3.64B in net outflows—about 2.1% of its previously disclosed $171B in assets. Binance also replenished approximately 95% of affected assets. However, DefiLlama data showed rolling 24-hour net outflows briefly reaching $5.817B, while OKX, Robinhood, and Bybit recorded net inflows. The stolen funds continue moving across chains. The FBI attributed the attack to North Korea’s TraderTraitor and published associated wallet addresses. Meanwhile, THORChain temporarily halted multi-chain trading after an Ethereum block reorganization triggered an erroneous 10 ETH payout. Although the funds were returned and the vault’s solvency restored, the incident highlighted vulnerabilities in cross-chain finality, risk controls, and emergency response mechanisms. **Key levels:** * Resistance: $80K * Support: $76K * Trend: Short-term recovery, with confidence and institutional flows still weak ⸻ 🔥 **Hot Tokens** * **LIT:** \+12% as Lighter reportedly plans to seek U.S. CFTC derivatives licenses, alongside progress in its Robinhood Chain deployment. * **G:** \+10% amid Gravity’s mainnet migration, exchange liquidity constraints, and widening cross-platform price gaps. * **NEAR:** \+8.5% ahead of a November 2 vote on reducing its maximum annual issuance rate from 2.5% to 1.6%. * **DACITYCOIN:** Surged over 50% as the fictional cryptocurrency featured in the GTA VI trailer sparked meme-token speculation. ⸻ 📰 **Key Updates** * **Polymarket:** Expanding its Chainlink partnership to launch 15-minute gold and silver price prediction markets. * **Moscow Exchange:** Will offer crypto trading across all trading sessions starting December 1. * **Italy:** Proposing a 33% exit tax on crypto holders relocating abroad, including unrealized gains. * **OnePay & Stripe:** Launched stablecoin deposits, enabling USDC-to-USD conversion across 12 blockchains. * **Uniswap:** Introduced TJAR, a framework that automatically converts application fees collected in multiple tokens into a designated token. * **Brazil:** Closed its virtual asset service provider licensing window, with around 40 companies submitting applications. * **Token unlocks:** BTW unlocks 3.37% (~~$114M) and ZAMA 10.92% (~~$18.58M) on Nov 2; KITE unlocks 17.42% (~~$75.6M) on Nov 3; MMT unlocks 294.38% (~~$32.3M) on Nov 4. ⸻ ⚡ **Quick Take** BTC has recovered toward $78K as Binance withdrawal pressure eases, but ETF outflows and lingering security concerns suggest market confidence remains fragile. The $76K support and $80K resistance are key levels to watch, with U.S. midterm elections, nonfarm payrolls, and major tech earnings likely to drive volatility this week.

Volume like that during a panic is mostly arb and toxic flow, so the fees were real but the LPs probably ate the move on inventory too. Pull the pool's fee growth for that day, a 1% tier doing 6x volume while ETH was swinging usually means the range got run clean through and the LPs ended up holding the heavy side.

AI Overview Yes, the Ult / Ultra Wallet app and associated crypto/trading schemes are widely flagged by users and online communities as part of scam or high-risk operations. Key Red Flags Associated with Ult Apps: • Blocked or Frozen Withdrawals: Numerous user reviews and reports describe accounts where funds become trapped, and withdrawing money is blocked. • Advance Fee & Tax Demands: Scammers use a classic tactic where customer support or fake agents demand successive "verification fees," "processing fees," or "taxes" before supposedly releasing funds—no legitimate financial platform forces you to pay out-of-pocket fees to withdraw your own money. • Grooming and Fake Relationships: Many victims report being lured in via online relationships, social media, or signal providers who direct them to download decentralized or custom apps showing fake, inflated profits. • Unhelpful or Defensive Support: Support channels typically blame the user, demand more money for gas/network fees (like ETH), or tell victims to contact local law enforcement once funds are gone.

What is this ? The grocery store? Demand does not affect the inflation rate of Ethereum u donkey. Demand can chg the price per eth but what does that have to do with inflation rates? Rofl ETH Inflation Rate (%) = ((ETH Issued - ETH Burned) / Starting ETH Supply) \* 100

It's getting ready to do something. ETH has already broke and has a slide going, down. https://preview.redd.it/i5ews53p33zh1.png?width=1560&format=png&auto=webp&s=59d60bb9816cc590ca9e02706f5e1ef4727701e2

How do I convert BETH back to ETH? I think I left it in a staking pool a while back but I'm not 100% sure. Any advice is appreciated

Good recap. The way I'd frame it: 6780 didn't make "same address, different bytecode" impossible, it just moved where you have to look 🧐 The classic metamorphic trick (CREATE2 with initcode that pulls runtime bytecode from somewhere else, then selfdestruct and redeploy) is basically dead for anything that survived past its creation transaction, because SELFDESTRUCT now only sends the ETH and leaves the bytecode and storage in place. The only case where it still fully wipes is create-and-destroy in the same tx, and in that case nobody ever had a chance to audit the thing anyway. What's left that can change behind a fixed address: - Upgradeable proxies. Totally legit and everywhere, but auditing the implementation tells you nothing about the next one. Who holds the upgrade key and whether there's a timelock matters more than the audit date. - 7702 delegations. The account can re-sign a new authorization and point at a different implementation whenever it wants, so "the bytecode at this address" is a snapshot, not a guarantee. - Governance that can swap modules or execute arbitrary calls, which is really what the Tornado attacker abused: the proposal looked fine, the logic behind it changed before execution. So the modern version of "check Etherscan" is less about spotting selfdestruct and more about asking who can change what, and how much warning you get before they do 👀

And 90% has already been replenished (from Binance): "Since our last update, the covered amount has risen from approximately 80% to 90%. All BTC, ETH, USDT, BNB, SOL, USDC, XRP, USD1, RLUSD and ZEC are fully backed at 100%. We'll keep purchasing the remaining assets through market and OTC channels until the covered amount reaches 100% for all tokens."

this is dumb AI, swapping to USDC and USDT is how they lost billions already. The paths they want to go are to BTC, ETH and XMR. These are chains that will be around forever they have bridges and methods of converting between them using decentralized protocols.

Incorrect, assets were quickly swapped to BTC and ETH.

big news yesterday with a winner being nominated for the Android Offline AI Research App competition on poidh! Commonplace by 0xPD33: [https://github.com/0xPD33/commonplace](https://github.com/0xPD33/commonplace) 🏆 Vitalik added 1 ETH to this bounty and he now has final say on whether it gets paid out since the onchain voting confirmation period has \~24 hours remaining (Commonplace was his recommendation though, so this is most likely a done deal) full breakdown of the bounty here, with links to the 10+ apps that were submitted! if you're interested in the cutting edge of mobile local AI (and onchain coordination tooling) def worth checking out: [https://kenny.gwei.limo/posts/60cbade2c961-android-offline-ai-research-app-winner](https://kenny.gwei.limo/posts/60cbade2c961-android-offline-ai-research-app-winner) yesterday's announcement on X: [https://x.com/kennyistyping/status/2116576250731078041](https://x.com/kennyistyping/status/2116576250731078041)

Fair question. This was a crypto backtest across BTC, ETH and SOL, not CME futures. The $7.1k is the total modeled fees across 979 trades, not a fee on a single position. The strategy also generated a lot of turnover. That said, I still need to verify the historical exchange fee assumptions, so I wouldn't claim those costs perfectly reflect live execution. That's one of the limitations of this test.

> But laundered USDT, USDC, XRP can be traced and frozen. Yeah, they're just immediate "liquid" cash. > Converting them to XMR would have made them untraceable and unfreezable. There's simply isn't that kind of demand for USDT, the market is too shallow. It was even shallow on USD->ETH route, and the lending protocols have substantially deeper market (they swapped around 100M worth within, with substantial (~10%) but still reaonsable slippage. This isn't really something XMR could absorb (even ETH defi market barely can).

Proof: [https://imgur.com/a/oCsCulg](https://imgur.com/a/oCsCulg) (P-1) 20 oz Silver Bar - Scottsdale Mint Imperium - XX .999 Silver Bullion Bar #A707 **$1,020 shipped.** Price is firm. Payment methods: * USD: venmo, PayPal, Cash APP. No note. * Cryptos: USDC on ETH network, BTC on BTC network (3% surcharge), ETH on ETH network (3% surcharge). Ship to all 50 states, US Territories, and Military Bases. Almost all my shipping labels each carry $100 complimentary insurance. Additional insurance coverage is available at the buyer's expense. Packaging will be done in a way that protects not only the metals, but also their containers. I have an industry-leading standard of padding, filling, packaging, and taping for every shipment. Once the carrier takes possession of the package directly from my hands, my liability ends. But I will do my best to help with investigation, and insurance claim filing on behalf of the buyer, in the rare case of package loss, package damage, or content leakage. \------------------- All metals are sourced from trustworthy sellers and have passed my rigorous authentication through several steps in the following order whenever appropriate: 1. Weight test 2. Magnet test 3. Ice test 4. Ping test passed by iphone APP StackerTools. * This is an overly rigorous test which sometimes fails a legitimate piece of silver in an odd shape or heavy toning. 5. And/or the test of Sigma Metalytics Precious Metal Verifier PMV PRO with Refiners Wand, Small Wand, Large Wand and Bridge (Model #2701): * This device tests the resistivity and density of metals. It cannot tell you what a piece of metal is. It can only tries to tell you if that piece fits what you think it is. You have to have a rough idea what the piece can be. * It is one of the best ways to test authenticity in general, but it cannot replace other kinds of testing, and is not always the right/best way of testing (NOT infallible, and limited in the testable range of metals): * In rare cases, a fake piece of metal can have similar resistivity and density of a real piece thus fooling Sigma. * A genuine metal piece may fail Sigma test because of its extreme size, lack of flat surface, toning, and other interferences such as assay card with authentication technology. For example, a genuine PAMP 1 gram Fortuna Gold Bar fails the test of Sigma PMV Pro with all accessories due to its extremely small size and the interference of its Veriscan Assay Card. * This device cannot test silver with a purity lower than 83.3%. For example, 40% silver Kennedy Half Dollar cannot be tested by Sigma, but can be tested by ping test through StackerTools. * Thus, my multi-step hybrid authenticity test is superior than only using Sigma, and is the best practice given my resources. There are other even more expensive tests - XRF can outright tell you the exact metal composition of the surface of a piece of object, which Sigma cannot do. But the penetration of XRF is shallower than that of Sigma.