Collection vaults arrive with Phase B — communities pooling carbon per-NFT.
Carbon here is locked forever in each NFT's own contract — provably unrecoverable. Endowment share = the NFT's share of its fund's total retirements so far.
CHAR = 1 tonne CO₂e · CCC = 1 lb CO₂e · combined shown as tonnes (lbs ÷ 2,204.62). Registry 0xfd78…3a4B.