What is Fantums Reborn
Fantums Reborn is a 10,860-supply pixel-art duel collection on the Sonic blockchain (chain 146). It is the rebirth of a project called Fantums of Opera that launched on Fantom Opera in July 2021. Fantom Opera is being wound down on 2026-06-30 and the original collection's centralised image API has been dead for months. We snapshot, we preserve, we ship the encore on a chain that's actually fast.
What you get
- A 32x32 pixel-art Fantum minted on Sonic, with stats, weapon, and rarity baked into the on-chain struct.
- Art rendered on-chain — no API, no IPFS pin to rot, no central point of failure. Marketplaces read SVG bytes straight from the contract.
- A duel game with signed-result PvP, deterministic on-chain combat math, and optional permadeath.
- If you held an original Fantum at any point in history, an OG badge on every Reborn you mint — stat boost, fight discount, free first revive, cheaper marketplace fees, and OG-only drop windows. Perks live on the NFT, not the wallet, so they survive resale.
What makes it different
The original Fantums collection had a great idea — wager-staked PvP duels with permadeath — but it was hosted on a chain that died and an art server that died with it. Out of 10,860 tokens, only 7 PNGs were ever cached publicly. The collection was effectively unviewable by the time we picked it up.
Reborn fixes the three architectural sins of the original:
| Original sin | Reborn fix |
|---|---|
Centralised image API (api.fantums.com, currently 502) | On-chain SVG renderer. Every pixel reachable forever. |
| Client-side proof-of-work mint puzzle | Deterministic shuffle with a publicly committed seed hash. |
| Closed-source duel math on a web server | Signed-result PvP. Anyone can re-run the math and audit. |
Everything else from the original loop — wager-stake duels, the ghost silhouette, the operatic costuming, the permadeath threat — is preserved or improved. See Improvements over the original for the audit-level detail.
Who built it
The dev was on the original Fantums Discord in 2021. The project's death wasn't the dev team's fault — it was the chain — but the rebirth is. The founder wallet gets a 1-of-1 Dev Monarch, minted via Fantums.mintKing(), not counted against the 10,860 supply. The crown is the signature.
Where it lives
| Chain | Sonic mainnet, chain ID 146 |
| Token | Fantums (FUM), ERC-721 with on-chain stats |
| Utility token | sFUM, ERC-20 fixed supply 100,000 |
| Native fee rebate | 90% via Sonic FeeM |
| Explorer | https://sonicscan.org |
Contract addresses are TBD at launch — see Contract addresses.
Reading order
- The origin story — what happened on Fantom Opera and why we're doing this.
- Why on Sonic — chain choice rationale.
- OG perks — what legacy holders get.
- Combat system — the duel mechanics.
Last updated: 2026-05-21