Contracts & events (EVM/BSC)

  • METToken (BEP‑20): mint/burn; transfers.

  • StakingV2: stake, levels, yield curve; StakeUpdated(address user, uint256 level, uint256 coef).

  • DIDRegistry: DID binding & minimal trails; DIDLinked(address user, bytes32 didHash).

  • SocialCard (ERC‑721/1155): tiers & unlocks; CardUpgraded(tokenId, tier).

  • MerchantHub: templates/inventory/validation; ActivityAnnounce, RewardIssued.

SettlementAnchor: financial batch anchoring; PaymentAnchored(bytes32 merkleRoot, uint256 netUSD, bytes32 region, uint64 windowId).

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