E1730 — CBSS: committee_epoch_at_serve != quorum/serve epoch; single-epoch required

Property	Value
Code	`1730`
Slug	`E1730`
Category	`cbss` (CBSS)
CIP	CIP-24

What happened

Cbss: committee_epoch_at_serve != quorum/serve epoch; single-epoch required. This is the receipt’s what text, produced by the node’s ExecutionError::MixedEpochReceipts.

Why it happened

The node rejected the operation with E1730 (category cbss, CBSS). 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-24.

How to fix

committee_epoch_at_serve != quorum/serve epoch; single-epoch required.

Receipt example

{
  "code": 1730,
  "slug": "E1730",
  "category": "cbss",
  "what": "cbss: committee_epoch_at_serve != quorum/serve epoch; single-epoch required",
  "fix": "committee_epoch_at_serve != quorum/serve epoch; single-epoch required.",
  "docs_url": "https://docs.cowboy.inc/errors/E1730"
}

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