Atomic burn-fuse
Ten assets into one, proven to fit a single transaction.
Convert a 3,180-asset legacy pNFT collection into Metaplex Core cards at ten to one, atomically.
A custody vault was tried and shelved: the 64-entry instruction-trace limit caps any vault at five transfers per transaction, and a missing withdraw instruction would have trapped around 6.5 SOL.
The only atomic shape is burn: ten burn instructions plus one sealed-card transfer, proven in the lab to fit a single versioned transaction at 440,263 compute units.
The shipped path signs several transactions behind one approval. Tier comes from the rarity of the ten inputs, through an update delegate set, applied, revoked.
440,263 CU, instruction trace 43 of 64, 906 bytes.
318 sealed cards preminted 2026-07-13; fuse.keepq.ai live 2026-07-15, 8 of 8 end to end.