# Andhakara
> Andhakara is a collectible card collection on vibe.market, trading as ANKR on Base, with an In Oz We Trust expansion.
Source: https://docs.ozmium.org/also/andhakara/
Keywords: andhakara ankr, gamefi collectible cards base, vibe market base, in oz we trust expansion, onchain trading cards
Updated: 2026-07-28
---

![The Andhakara seal, an animated sigil of a mountain pass and a winding road inside a thorned ring.](/img/andhakara-seal.webp ">> The Andhakara seal.")

**[Andhakara](https://vibechain.com/market/andhakara?ref=W2YQQ8FH39QD)** trades as **ANKR** on
[vibe.market](https://vibe.market), a Base-native platform for collectible card collections. Packs
open onchain, card metadata and pack odds are published before purchase, and every pull, trade, and
listing settles as a Base transaction anyone can verify. The platform's mechanics, contracts, and
developer interfaces are documented at [docs.vibechain.com](https://docs.vibechain.com/docs/vibemarket),
including the [contract interfaces](https://docs.vibechain.com/docs/vibemarket/developers/interfaces)
an agent would build against.

The **In Oz We Trust** expansion connects the collection to the wider Ozmium world, and the cards
themselves trade on the open market: the collection is listed on
[OpenSea](https://opensea.io/collection/andhakara) as well as on vibe.market itself.

## The Cards

<div class="oz-cards">

![The Ozma card from the Andhakara collection.](/img/andhakara-card-ozma.webp "Ozma.")

![The Beast card from the Andhakara collection.](/img/andhakara-card-beast.webp "Beast.")

![A rare dog card from the Andhakara collection.](/img/andhakara-card-rare-dog.webp "Rare pull.")

![The Voyage card from the Andhakara collection.](/img/andhakara-card-voyage.webp "Voyage.")

![The Home card from the Andhakara collection.](/img/andhakara-card-home.webp "Home.")

</div>

## Watch It

<div class="oz-vids">

{{video:andhakara-in-oz-we-trust|In Oz We Trust, the collectible card expansion.}}

{{video:andhakara-vibe-market-alpha|Vibe Market Alpha, featuring Andhakara.}}

</div>

## Pack Economics, Measured

The mechanics are contract reads rather than marketing, so the arithmetic is checkable before you buy
anything.

| Input | Where It Comes From |
|---|---|
| Pack Price | `getMintPrice(n)` on the drop contract |
| Entropy Fee | `getEntropyFee()`, the randomness cost, added on top |
| Card Value | `getTokenSellQuote()` against the bonding curve |
| Platform Fee | Roughly 7.5 percent on the round trip, split between creator, referrer, and platform |

Which gives the expected value of opening one pack:

```
EV = sum( P(rarity) x payout(rarity) ) x (1 - fee) - packCost - entropyFee - gas
```

The house edge is explicit rather than hidden. A 7.5 percent round trip on a bonding curve is the
business model, stated in the open, and a pack is only worth opening when the rarity distribution
pays for it. That is measurable, and it is the reason the numbers above are contract calls rather
than claims.

Cards come in five tiers, read from `getTokenRarity`: Common, Uncommon, Rare, Epic, and Legendary.

Both Andhakara contracts are live on Base as minimal-proxy clones, so every figure here can be read
straight from the chain:

| Contract | Address |
|---|---|
| Drop | [`0x6b86b5fdb2be7aa5680959aba268963876dbb091`](https://basescan.org/address/0x6b86b5fdb2be7aa5680959aba268963876dbb091) |
| Token | [`0xf3d04c612643a98ac485458053c0a9fe6b6d6a53`](https://basescan.org/address/0xf3d04c612643a98ac485458053c0a9fe6b6d6a53) |

The referrer share of that 7.5 percent is why the links on this page carry a referral code. Opening a
pack through them costs you nothing extra, and routes the referrer portion of a fee you were paying
anyway.

## What Makes a Card Collection Onchain

Physical trading cards have an authentication problem that has never really been solved: grading is a
service you pay for, and provenance is a story somebody tells you. Onchain, both are properties of
the record.

| Property | How It Works |
|---|---|
| Pack Odds | Published before purchase, not discovered after. |
| Provenance | Every mint, pull, and transfer is a Base transaction. |
| Ownership | Held in your own wallet, tradeable without asking anyone. |
| Scarcity | Enforced by the contract rather than by a printer's word. |

## Where It Sits

Andhakara is a collection, not a financial product, and holding a card entitles you to nothing beyond
the card. Read [Terms And Risk](/company/terms/) before buying anything onchain, here or anywhere
else.

## Related

- [Bard: The Theremini App](/also/bard/)
- [Ozmium Labs](/also/labs/)
- [OZ Token](/token/oz/)