Exactly what each field means, how to compute it, and how to verify it
value — what happened (untouched)
Carry the factual magnitude or small struct exactly as produced.
# collapse parity (always holds)
phi((m,a)) = m
Rules
• No smoothing / rounding / rescaling
• No unit changes in-flight
• Byte-for-byte reproducible from the source
Examples
temperature_K : 296.42
cash_collected_usd : 18420.77
bearing_vibration_rms : 0.037
ai_model_score : 0.912
heart_rr_interval_ms : 782
align — how stable / how close to risk (bounded in (-1,+1))
Compute a bounded, replayable stability dial from a raw alignment signal.
# alignment pipeline (normative)
a_c := clamp(a_raw, -1+eps_a, +1-eps_a)
u := atanh(a_c)
U += w * u
W += w
align := tanh( U / max(W, eps_w) )
Knobs to publish (in the manifest)
eps_a := 1e-6
eps_w := 1e-12
w := "uniform" | rule (e.g., w := |m|^gamma)
Expected properties
-1 < align < +1
batch == stream == merged-shards # order-invariant fuse
band — a human / policy label derived from align
Turn the dial into duty-of-care using declared cutpoints.
# example cutpoints (declare in manifest)
A++ : align >= +0.80
A0 : -0.30 <= align < +0.80
A- : -0.80 <= align < -0.30
CRITICAL : align < -0.80
What band communicates
• Immediate meaning (GREEN / AMBER / RED)
• Expected response (e.g., CRITICAL => human_response <= 10 minutes)
Rule
band := band_from_align(align, manifest_id)
# do not hand-label; always derive via the manifest
manifest_id — the rulebook anchor
Every record must point to the immutable policy that defined its meaning.
manifest_id := "PLANT_A_BEARING_SAFETY_v7"
A manifest declares
• Baseline/lens and math knobs (eps_a, eps_w, weight rule)
• Band cutpoints + escalation promises
• Any gates/filters used before banding
Versioning rule
# if policy changes, mint a new id
"PLANT_A_BEARING_SAFETY_v8"
stamp — proof of time, content, and order (recommended)
Bind the canonical subset to a digest and chain it to the previous one.
# canonical subset (hash exactly this)
canonical(record):
{
"value": <as-emitted>,
"align": <number>,
"band": <string-or-null>,
"manifest_id": <string>
}
digest := sha256(bytes(canonical(record)))
stamp := "SSMCLOCK1|" + utc_now() +
"|theta=" + monotonic_marker() +
"|sha256=" + digest +
"|prev=" + prev_digest
prev_digest := digest
Verifier
expect := sha256(bytes(canonical(record)))
assert parse(stamp,"sha256") == expect
assert parse(stamp,"prev") == last_digest
last_digest := expect
Quick acceptance checklist (copy-ready)
[ ] phi((m,a)) = m holds (value is untouched)
[ ] align computed via clamp → atanh → fuse → tanh and -1 < align < +1
[ ] band derived by manifest cutpoints (not freehand)
[ ] manifest_id resolves to an immutable manifest
[ ] stamp (if present) verifies digest parity and chain continuity
Navigation
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SSMDE – Table of Contents
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