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Spanish is the original source. The other languages are translations.

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Each contribution buys time to write RAIM, review the books, and build Studio tools.

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Cryptocurrency

Use the currency and network shown with each address.

Address QR code for Bitcoin · BTC
Bitcoin
bc1qu5xksjrvadpa756a9sr7lqa9tpp2g33vfc02kr

Receives BTC on the Bitcoin network.

Address QR code for Ethereum / EVM
EVM
0xC993E6cbAC3e68661f2Fc198769253456d698b45

One address for ETH and assets on EVM-compatible networks.

View compatible networks

You can use ETH, USDT, USDC and other tokens on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Smart Chain and other EVM networks. Select the network and asset in your wallet.

Address QR code for Solana · SOL
Solana
4cywQdnocJ8MYgMZXxcicRUogeDUTMxsP86Mek2L8nHj

This address is published for native SOL on the Solana network.

Address QR code for TRON · TRX
TRON · TRX / TRC-10 / TRC-20
TFAFi3rMt32xhaawRQTh6ca4Js5Bu2vpmn

Accepts TRX and TRC-10 or TRC-20 tokens on the TRON network.

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Privacy · KelXR

Your data stays with you

Covers kelxr.dev and its subdomains, except products with their own privacy policy. The site stores theme and language preferences, and the RAIM reader stores its state in your browser. Visits are measured without analytics cookies.

Theme

The theme you choose (system, light, or dark) is stored for one year in the kelxr_theme cookie, shared by kelxr.dev and its subdomains.

Language

When you switch languages, the kelxr_lang cookie stores your choice for one year, also shared by kelxr.dev and its subdomains. If you have not chosen one yet, the server uses the language requested by your browser.

Reading in RAIM

The reader stores your position, recent visits, highlights and reading settings in this browser’s local storage. The site does not send that state to a server or sync it across browsers or devices. In Aa → Local data you can choose what to keep, export or import a file, and delete the saved state.

Visits

Cloudflare delivers the site and receives connection data for each visit, such as the IP address and requested path. Web Analytics measures visits and performance without cookies or fingerprinting. Details are in Cloudflare's privacy policy.