G_CHARGE_ONCE

{
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      "op": "\u003c=",
      "rhs_fact": "redis.max_ttl_hours",
      "rv": 48,
      "state": "holding",
      "text": "The shared Redis cluster keeps dedupe records for the full dedupe window",
      "touched": false
    },
    {
      "attestations": [],
      "id": "A_RETRY_WINDOW",
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      "rv": 24,
      "state": "holding",
      "text": "Paylane stops retrying a webhook before our dedupe records expire",
      "touched": false
    },
    {
      "attestations": [
        {
          "on": 1788307200000,
          "person": "p_anika",
          "review_by": 1803859200000,
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      "id": "A_STABLE_EVENT_ID",
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      "lhs_fact": null,
      "lv": null,
      "op": null,
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      "state": "holding",
      "text": "Paylane sends the same event_id on every retry of a webhook",
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  ],
  "guarantees": [
    {
      "chain": [],
      "id": "G_CHARGE_ONCE",
      "pagerank": 0.00914494507014751,
      "prerequisites": [
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        "A_RETRY_WINDOW",
        "A_STABLE_EVENT_ID"
      ],
      "statement": "A customer is charged at most once per order",
      "status": "holds",
      "unverified": 0
    }
  ],
  "now_ms": 1792353043861,
  "sources": [
    {
      "commit_sha": "local",
      "id": "A_REDIS_TTL",
      "line": 24,
      "path": "adr/ADR-007.md",
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    },
    {
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    },
    {
      "commit_sha": "local",
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      "path": "adr/ADR-007.md",
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    },
    {
      "commit_sha": "local",
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      "line": 12,
      "path": "adr/ADR-012.md",
      "url": null
    }
  ]
}