trenchcoat Check a coin
💎K$💎KINGnew$132K+1.5%$OCARINAnew$90.6K+32.9%$Anthropicnew$3.3B+82.5%TB$TBNnew$34.7K聚宝$聚宝盆new$101K$불개미new$17.5K+266.0%$姆巴龟new$31.4K+130.0%DU$DUPEnew$13.6K+55.6%WI$wienernew$11.5K+31.4%$yoki酱new$16.1K+42.7%$HARMONICnew$24.6K+41.4%$Coppernew$47.3K+246.0%MM$MMCoinsnew$19.0K+61.8%$BMWnew$431K+932.0%$DUPEnew$24.9K-46.0%$Wormnew$10.1K+0.1%CL$CLUBnew$435K+138.0%$ELON2028new$23.9K+399.0%PA$pawsnew$44.2K+0.1%TR$TRUMPnew$135K+1483.0%$.AiTownnew$21.8K+22.4%$SKRGUnew$15.5M$USOEnew$4.2B+56.8%PA$pawsnew$11.7K+33.7%招财$招财猫new$29.4K+58.8%$USOEnew$695K-71.8%AN$ANCHnew$35.3K$Nekonew$19.1K+99.6%TO$TOROSnew$21.0K+783.0%$Clanknew$23.0K+0.2%WO$worthnew$27.4K+137.0%BS$BSCnew$173K+209.0%$VEIL$953K-26.6%$PAID$2.5M-10.8%$BATON$5.4M-5.4%$DARK$929K+21.9%$XTO$14.3M+21.2%$MISTAKE$815K-9.3%$HOOKED$1.0M-8.7%$E/ACC$413K+0.4%
Website blueprint · 17 Oct 2026

chaincard.fun

“Chaincard”

Template-written 26 evidence items REA analysed 22 scripts
What this means for you

chaincard.fun talked to 2 outside services on a first visit.E5E6

  • Tech check: the site claims on-chain / smart contracts, wallet connection and a working app / platform, and its public page shows matching evidence.E24E25E23E21E22
  • We saw no known analytics or advertising services load on the first visit.E1
  • Its code can ask your wallet to sign transactions. Read every wallet pop-up before approving.E21

Tech check

What the site says about itself, next to what its public page actually loads. Facts only, no verdict: you decide.

Evidence found

On-chain / smart contracts

“…ARKET MINT DOCS ABOUT SEARCH CONNECT WALLET YOUR NAME. ON CHAIN. FOREVER. ON-CHAIN BUSINESS CARDS ON SOLANA. MINT 0.15…”E24

Blockchains named in its code: SolanaE23

Wallet requests in its code: signTransaction, signMessageE21E22

Evidence found

Wallet connection

“Chaincard HOME MARKET MINT DOCS ABOUT SEARCH CONNECT WALLET YOUR NAME. ON CHAIN. FOREVER. ON-CHAIN BUSINESS CARDS…”E25

Wallet libraries in its code: WalletConnect / Reown, Solana web3 / wallet adapter, PhantomE9E10E11

Wallet requests in its code: signTransaction, signMessageE21E22

Evidence found

A working app / platform

“…DNIGHT GRAPE ACID BLOOD GOLD FOIL PREMIUM HOLO PREMIUM TERMINAL PREMIUM COBALT PREMIUM PHANTOM PREMIUM CARD COLORS (OP…”E26

Wallet code: WalletConnect / Reown, Solana web3 / wallet adapter, PhantomE9E10E11

Live connections: keeps a live two-way connection open to a serverE14

Calls its own backend none seen
Wallet code WalletConnect / Reown, Solana web3 / wallet adapter, PhantomE9E10E11E21
Contract calls in its code none seen
Talks to AI services none seen
Live connections keeps a live two-way connection open to a serverE14

What it is

  • The site describes itself as: “On-chain business cards on Solana, inscribed forever.”E2
  • It's built with Next.js and React (common tools for building web apps).E7E8
  • In your browser it can copy text to your clipboard, saves small bits of data in your browser and keeps a live two-way connection open to a server.E12E13E14
  • It has sections such as /market and /docs.E20

Where your data goes

FontsDownload typefaces. 2
fonts.googleapis.comGoogle Fonts: fonts 1×E5
fonts.gstatic.comGoogle Fonts: fonts 1×E6

Crypto and wallets

  • Wallet tools in the code: WalletConnect / Reown, Solana web3 / wallet adapter and Phantom.E9E10E11
  • signTransaction: asks a wallet to sign transactions (often Solana wallets).E21
  • signMessage: asks a wallet to sign a message.E22
  • Chains named in the code: Solana.E23

How key features work

What it can ask your wallet to sign

Its code can ask your wallet for signTransaction. Each of these opens a wallet pop-up you must approve; read it before you click.E21

signTransaction

Connecting your wallet

It connects to crypto wallets using WalletConnect / Reown, Solana web3 / wallet adapter, Phantom, signTransaction and 1 more. Connecting shows the site your wallet address; it doesn't move funds by itself.E9E10E11

WalletConnect / ReownSolana web3 / wallet adapterPhantomsignTransactionsignMessage

Reading the blockchain

It reads blockchain data (Solana) to show balances, prices or contract state.E23

Solana

Live updates

It keeps live connections open (WebSockets) so content updates without reloading.E14

websocket

Drawing and editing in the browser

The page draws and edits graphics in your browser using the canvas.E15

canvas

Saving data on your device

It saves data in your browser (localStorage), so some things persist between visits.E13

local_storage

Pages and API calls

Pages it links to

//market/docs

Endpoints

Called while loading (seen) or named in the code (code).

/api/marketcodeE16
/api/nftcodeE17
/api/namescodeE18
/api/ownercodeE19

Evidence

Every sentence above points to one of these. Code references show the file, line:column and the short identifier that matched, never the site's code itself.

E1
Page title: Chaincard
page title · https://chaincard.fun/
E2
Page description: On-chain business cards on Solana, inscribed forever.
page description · https://chaincard.fun/
E3
Main heading: YOUR NAME. ON CHAIN. FOREVER.
page h1 · https://chaincard.fun/
E4
24 request(s) to chaincard.fun
types: 17 script, 2 font, 2 fetch
GET https://chaincard.fun/ · script · 24 requests · network recording
E5
1 request(s) to fonts.googleapis.com
types: 1 stylesheet
GET https://fonts.googleapis.com/css2 · stylesheet · network recording
E6
1 request(s) to fonts.gstatic.com
types: 1 font
GET https://fonts.gstatic.com/s/dmsans/v17/rP2Yp2ywxg089UriI5-g4vlH9VoD8Cmcqbu0-K4.woff2 · font · network recording
E7
Next.js detected by REA (next-runtime)
confidence: high
chaincard.fun/_next/static/chunks/288-dad6537f8d06a65b.js · “next-runtime” · REA analyze-web-bundle 6.4.0
E8
React detected by REA (react-runtime)
confidence: medium
chaincard.fun/_next/static/chunks/117-f3fc7d361c438efe.js · “react-runtime” · REA analyze-web-bundle 6.4.0
E9
WalletConnect / Reown found in the code
chaincard.fun/_next/static/chunks/41-56cfdbebac2dab7e.js @ 1:2071 · “WalletConnect” · pattern scan
E10
Solana web3 / wallet adapter found in the code
chaincard.fun/ (page HTML) @ 1:3345 · “wallet-adapter” · pattern scan
E11
Phantom found in the code
chaincard.fun/_next/static/chunks/532-08c27a01326ceaa9.js @ 1:26009 · “phantom.app” · pattern scan
E12
Uses the browser ability: clipboard_write
can copy text to your clipboard
chaincard.fun/_next/static/chunks/755.3ccb651d48ea62ec.js @ 1:3905 · “clipboard.writeText(” · pattern scan
E13
Uses the browser ability: local_storage
saves small bits of data in your browser
chaincard.fun/_next/static/chunks/532-08c27a01326ceaa9.js @ 479:31283 · “localStorage.setItem(” · pattern scan
E14
Uses the browser ability: websocket
keeps a live two-way connection open to a server
chaincard.fun/_next/static/chunks/532-08c27a01326ceaa9.js @ 6:7854 · “new WebSocket(” · pattern scan
E15
Uses the browser ability: canvas
draws graphics on a canvas
chaincard.fun/_next/static/chunks/app/page-2806614ac6e4af1b.js @ 1:4969 · “getContext("2d"” · pattern scan
E16
REA found the endpoint /api/market
how: call:fetch
chaincard.fun/_next/static/chunks/app/market/page-6f9cfe402646d1df.js @ 1:1345 · “/api/market” · REA analyze-web-bundle 6.4.0
E17
The code names the endpoint /api/nft
chaincard.fun/_next/static/chunks/app/page-2806614ac6e4af1b.js @ 1:8401 · “/api/nft” · pattern scan
E18
The code names the endpoint /api/names
chaincard.fun/_next/static/chunks/app/page-2806614ac6e4af1b.js @ 1:16115 · “/api/names” · pattern scan
E19
The code names the endpoint /api/owner
chaincard.fun/_next/static/chunks/app/not-found-88b6adc747e52f3a.js @ 1:590 · “/api/owner” · pattern scan
E20
3 links to pages on the same site
page links · https://chaincard.fun/ · /, /market, /docs
E21
Wallet request in code: signTransaction
asks a wallet to sign transactions (often Solana wallets)
chaincard.fun/_next/static/chunks/app/page-2806614ac6e4af1b.js @ 1:10274 · “signTransaction” · pattern scan
E22
Wallet request in code: signMessage
asks a wallet to sign a message
chaincard.fun/_next/static/chunks/12-7c0f8f5055dfe492.js @ 1:162789 · “signMessage” · pattern scan
E23
Chain in code: Solana
chaincard.fun/_next/static/chunks/app/page-2806614ac6e4af1b.js @ 1:6378 · “helius-rpc” · pattern scan
E24
The site says: “…ARKET MINT DOCS ABOUT SEARCH CONNECT WALLET YOUR NAME. ON CHAIN. FOREVER. ON-CHAIN BUSINESS CARDS ON SOLANA. MINT 0.15…”
page text · https://chaincard.fun/ · …ARKET MINT DOCS ABOUT SEARCH CONNECT WALLET YOUR NAME. ON CHAIN. FOREVER. ON-CHAIN BUSINESS CARDS ON SOLANA. MINT 0.15…
E25
The site says: “Chaincard HOME MARKET MINT DOCS ABOUT SEARCH CONNECT WALLET YOUR NAME. ON CHAIN. FOREVER. ON-CHAIN BUSINESS CARDS…”
page text · https://chaincard.fun/ · Chaincard HOME MARKET MINT DOCS ABOUT SEARCH CONNECT WALLET YOUR NAME. ON CHAIN. FOREVER. ON-CHAIN BUSINESS CARDS…
E26
The site says: “…DNIGHT GRAPE ACID BLOOD GOLD FOIL PREMIUM HOLO PREMIUM TERMINAL PREMIUM COBALT PREMIUM PHANTOM PREMIUM CARD COLORS (OP…”
page text · https://chaincard.fun/ · …DNIGHT GRAPE ACID BLOOD GOLD FOIL PREMIUM HOLO PREMIUM TERMINAL PREMIUM COBALT PREMIUM PHANTOM PREMIUM CARD COLORS (OP…

Limits

  • We only see what your browser sees: code and requests on a first visit, without logging in or accepting cookie banners. What the servers do with data is invisible from outside.
  • Site code is usually minified (compressed), so names are partly lost and some code may be only partly analysed.
  • Some trackers only load after you accept cookies or log in, so the real list can be longer.
  • We visited from a server in the United States. Sites load different trackers and cookie banners in different countries (visitors in the EU usually get a consent banner first).
  • The tech check compares the site's own words with what its public page loads. Work done on servers, in private code or in separate apps isn't visible here, so 'nothing found' means not visible on the public page, not that it doesn't exist.
  • This text was written from fixed templates because no AI writer was available. It uses exactly the same evidence.
  • REA hit its size budget on parts of 15 large bundle file(s); those parts weren't fully analysed.

Facts, not judgements: this page describes what the code and traffic show, not anyone's intent. Not financial advice. Case id Qnjv82d9.