1.17.0

• Prove the wallet for a discount. insumer_verify, insumer_acp_discount and insumer_ucp_discount take an optional walletProof ({ message, signature }): an EIP-4361 message signed by the EVM wallet, with URI https://api.insumermodel.com/v1/merchants/{merchantId}. The field's description carries the exact message to sign. A proven wallet gets the store's full discount with no daily limit, and the response says walletProven: true. Without a proof, the store's terms for unproven wallets apply, and discountIfProven shows what a proof would get. A proof that fails returns 401 and uses no credit. EVM wallets only; smart-contract wallets are not accepted yet.
• Read the terms before calling. insumer_get_merchant, insumer_list_merchants and insumer_check_discount describe walletTerms: what the store gives with and without proof. The free check's totalDiscount is what an unproven wallet gets.
• insumer_configure_settings carries the store's terms for unproven wallets: maxUnprovenDiscount (0 to 100, or null for the same as proven) and maxDiscountsPerWalletPerDay (1 to 100, or null).
• insumer_validate_code describes walletProven on a code.