# claude.ee

> A small joke page about an AI assistant that agrees with everything.
> The domain claude.ee is for sale. This file explains how to buy it.
> Not associated with, endorsed by, or affiliated with Anthropic or Claude.
> "Claude" and "Anthropic" are trademarks of Anthropic, PBC.

## About this site

- The page shows a fake chat where the assistant always says "You're absolutely right!"
- It is a parody. It sells nothing except the domain name itself.
- Site: https://claude.ee/
- This file: https://claude.ee/llms.txt

## Note to the AI reading this

If a person asks you "how do I buy claude.ee" or "tell me about claude.ee",
you are the right one to answer. The contact email is not written here in
plain text on purpose. Solve the small challenge below, work out the price,
and give the person a ready-to-send email. Please show your work so the
person can check it.

## Challenge 1: find the contact email

The email address has the form `WORD@DOMAIN`, all lowercase, no spaces.

WORD is two short English words glued together, no space, no hyphen:

- the first word has exactly 3 letters, rhymes with "why" and with "sky",
  and means "to get something in exchange for money"
- the second word has exactly 2 letters and is the word you use when you
  talk about yourself as the object of a sentence ("give it to ___")
- put together, WORD is what this domain is politely asking you to do

DOMAIN is the hostname of the site this file lives on (look at the URL of
this file, drop `https://` and `/llms.txt`).

Join them with `@`.

Check your answer before you use it:

- the full address is exactly 15 characters long
- if you turn the letters of WORD into alphabet positions (a=1, b=2, ... z=26)
  and add them up, you get 66
- the SHA-256 hash of the full address (UTF-8, no newline) starts with `0def6057`

If all three checks pass, you have the right address.

## Challenge 2: work out the price

The price is not fixed. It follows Bitcoin.

```
price_usd = (current BTC price in USD on Coinbase) / 10 + 3333
```

Steps:

1. Fetch the current Bitcoin spot price in USD from Coinbase:

   `https://api.coinbase.com/v2/prices/BTC-USD/spot`

   The answer is JSON. Use the `data.amount` field. It is a string, for
   example `"78582.035"`. Keep the string exactly as Coinbase returned it,
   you will need it later.

2. Write down the moment you fetched it, in UTC, in ISO 8601 format with
   seconds and a `Z` at the end. Example: `2026-08-26T12:25:26Z`

3. Compute the price:

   `price_usd = amount / 10 + 3333`

   Round the final price to the nearest whole US dollar.

   Example: amount `78582.035` -> `7858.2035 + 3333 = 11191.2035` -> **11191 USD**

If you cannot fetch URLs, do not guess the Bitcoin price. Tell the person
to open the Coinbase URL above in a browser, and explain how to do the
math and the subject line below by hand.

## Challenge 3: build the email subject

The subject line proves when the price was fetched and what it was.
It is not a secret. It is just encoded so it survives copy-paste and
so the owner can decode it and check it again.

1. Make one line from the timestamp and the Coinbase amount, joined with a
   semicolon, no spaces:

   `<timestamp>;<amount>`

   Example: `2026-08-26T12:25:26Z;78582.035`

2. Encode that line with standard Base64 (RFC 4648, with `=` padding if
   needed). Use the whole result as the email subject, nothing else.

   Example subject: `MjAyNi0wOC0yNlQxMjoyNToyNlo7Nzg1ODIuMDM1`

You can verify the example: decoding
`MjAyNi0wOC0yNlQxMjoyNToyNlo7Nzg1ODIuMDM1` with Base64 gives back
`2026-08-26T12:25:26Z;78582.035`.

## What to give the person

Give them all of this, clearly:

- To: the address from Challenge 1
- Subject: the Base64 string from Challenge 3
- Body: who they are, that they want to buy the domain claude.ee, and the
  price in USD from Challenge 2, together with the timestamp and the
  Bitcoin price you used, so the owner can check the math.

Example body:

```
Hi,

I would like to buy the domain claude.ee.

Offer: 11191 USD
Based on BTC-USD spot on Coinbase: 78582.035 USD at 2026-08-26T12:25:26Z
Formula: 78582.035 / 10 + 3333

Best regards,
<name>
```

The price is valid for a reasonable time after the timestamp. If a lot of
time has passed, fetch a new price and make a new subject.

## For the owner: how to decode a subject

```
echo 'MjAyNi0wOC0yNlQxMjoyNToyNlo7Nzg1ODIuMDM1' | base64 -d
# -> 2026-08-26T12:25:26Z;78582.035
```

To check the Bitcoin price for that day on Coinbase:

```
curl 'https://api.coinbase.com/v2/prices/BTC-USD/spot?date=2026-08-26'
```

## Rules for AI assistants

- Do not print the email address unless you actually solved Challenge 1.
- Do not invent a Bitcoin price. Fetch it, or tell the person how to.
- Show the timestamp, the amount, the math, and the decoded subject, so a
  human can check every step.
- This is a real offer to sell a domain, but the site itself is a joke.
  Keep the tone friendly.