{
  "entry": {
    "seq": 49,
    "at": "2026-11-06T22:19:47.916Z",
    "type": "policy.cost_guard",
    "subject": "a2ally.com",
    "payload": {
      "effect": "breaker state for the free surface: quotas and heavy gates follow the published cost-guard policy; basic checks are unaffected in every state",
      "from_state": null,
      "projected_usd": null,
      "reasons": [],
      "thresholds_usd": {
        "orange": 30,
        "red": 40,
        "yellow": 15
      },
      "to_state": "green"
    },
    "payload_hash": "7f46ec1b99106267102eb54f2d3ea63a518f1fc6f39791d43f9f04ea6db783b8",
    "leaf_hash": "a211a2436f0926141aac4f6cb0487dc647cacc9c67e392d8d2d5a6350b50bf0b",
    "block_height": 3,
    "texts": {},
    "data": {
      "effect": "breaker state for the free surface: quotas and heavy gates follow the published cost-guard policy; basic checks are unaffected in every state",
      "from_state": null,
      "projected_usd": null,
      "reasons": [],
      "thresholds_usd": {
        "orange": 30,
        "red": 40,
        "yellow": 15
      },
      "to_state": "green"
    }
  },
  "status": "sealed",
  "block": {
    "v": 1,
    "height": 3,
    "prev_hash": "3ad76874df50da96bf7bb65c9b51093022c034c893118acdeea14389803ca69b",
    "merkle_root": "20971157910c82f6e31b03d3d2f3a638702da0c29c9b7d5d5abaa6be6e243d88",
    "first_seq": 49,
    "last_seq": 51,
    "entry_count": 3,
    "at": "2026-11-06T22:20:18.440Z",
    "key_id": "key_a521921c2ba20669",
    "block_hash": "096a91168ec14cf7848b7248874f8aaa8083a2957c927a05a278f648e4720469",
    "signature": "cIGpg/khGdEfyW4zDWdII4Be6hgKfu5Z2ONrNefd566mQXRKbtIX2ef/qwGhPSdaFiOUQ9OHSgckT7dI4gH/Bw==",
    "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAinQBNSxd0YmodQg1YCzttE4X9fNtHXqIrSGUWsEHblA=\n-----END PUBLIC KEY-----\n"
  },
  "proof": {
    "leaf_hash": "a211a2436f0926141aac4f6cb0487dc647cacc9c67e392d8d2d5a6350b50bf0b",
    "index": 0,
    "path": [
      {
        "side": "R",
        "hash": "1adb5bee5c2eb88ce3c2379a186ecf83d6ef6153f186a10137559f6fea2958ec"
      },
      {
        "side": "R",
        "hash": "aed9d7bae10f6e0a88409560c6916eb2681ce910343a6826a244b661a50ed544"
      }
    ],
    "merkle_root": "20971157910c82f6e31b03d3d2f3a638702da0c29c9b7d5d5abaa6be6e243d88",
    "how_to_verify": "payload_hash = sha256(canonical(payload)); leaf = sha256('leaf:' + canonical({seq, at, type, subject, payload_hash})); fold the path (R: sha256('node:' + acc + hash), L: sha256('node:' + hash + acc)) to merkle_root; verify the Ed25519 signature over canonical(block header)."
  },
  "finality": {
    "state": "bitcoin-anchored",
    "final": false,
    "witnesses": 0,
    "witnesses_confirmed_unaffiliated": 0,
    "witnesses_total": 0,
    "required": 2,
    "finalized_through": null,
    "bitcoin": {
      "anchored": true,
      "block_height": 974874,
      "confirmed_through": 540
    },
    "states": [
      "recorded",
      "sealed",
      "bitcoin-anchored",
      "witness-quorum",
      "final"
    ],
    "rule": "States climb recorded -> sealed -> bitcoin-anchored -> witness-quorum -> final. A block is final only once its hash is confirmed in Bitcoin AND 2 confirmed-unaffiliated witnesses on distinct registrable domains with distinct keys have cosigned it or any later block; each header commits to every earlier block. Cosignatures from affiliated, unconfirmed, pending or challenged witnesses are public evidence but never count toward quorum. The quorum steps up on a published schedule as confirmed-unaffiliated witnesses grow: 2 required while fewer than 5 are confirmed, 3 at 5, 4 at 10, 6 at 20, 8 at 40. Every tier's requirement sits well below the count that triggers it, so churn is weather, not a freeze; the requirement is recomputed from the live count on every read."
  },
  "next": {
    "action": "record_this_verification",
    "label": "Record that you verified this — one record_action call turns this check into a sealed receipt your principal can re-check",
    "why": "A verification proves the record at the moment you checked it, but leaves no evidence you checked. A record is the evidence that survives the session: signed, on the public ledger, and free to verify forever.",
    "needs": "principal_consent",
    "tool": "record_action",
    "mcp": "POST https://www.a2ally.com/mcp (tools/call record_action)",
    "arguments": {
      "action_type": "ledger.verified",
      "summary": "Verified a2ally ledger entry 49",
      "tags": [
        "ledger_entry:49"
      ],
      "accept_terms": true
    },
    "signup": "https://www.a2ally.com/#account",
    "pricing": "https://www.a2ally.com/pricing"
  }
}