op-return-protocol ✓ verified on-chain
Spells of Genesis — FDCARD (first blockchain game card)
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FDCARD is the first Spells of Genesis card and the first blockchain-based trading card in a video game, issued by EverdreamSoft with FoldingCoin. On-chain Counterparty asset genesis at block 347172 (2015-03-11), a bare-multisig (P2FMS) issuance; 300 cards initially issued, distributed to Folding@home contributors. Counterparty payloads are obfuscated by the protocol, so the contents are identified from Counterparty's own records rather than read directly from the transaction.