E1747 — CIP-34: auction grant nonce already used

Property	Value
Code	`1747`
Slug	`E1747`
Category	`commit_reveal` (Commit-Reveal)
CIP	CIP-34 §Sealed-Bid

What happened

Cip34: auction grant nonce already used. This is the receipt’s what text, produced by the node’s ExecutionError::AuctionGrantNonceUsed.

Why it happened

The node rejected the operation with E1747 (category commit_reveal, Commit-Reveal). The receipt’s why field carries the specific cause and context carries structured details, when the emitter attaches any. The normative rule is in CIP-34 §Sealed-Bid.

How to fix

This (originator, nonce) pair already opened an auction; have the originator sign a new grant with an unused nonce.

Receipt example

{
  "code": 1747,
  "slug": "E1747",
  "category": "commit_reveal",
  "what": "cip34: auction grant nonce already used",
  "fix": "This (originator, nonce) pair already opened an auction; have the originator sign a new grant with an unused nonce.",
  "docs_url": "https://docs.cowboy.inc/errors/E1747"
}

All Error Codes

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