Bind fact, policy, and time into a tamper-evident chain of record
6.1 What stamp is
stamp turns a record into evidence. It proves when the record existed, what its bytes were, and where it sits in a sequence—so removal, edits, or reordering become visible.
6.2 The chain structure
Illustrative one-line form:
SSMCLOCK1|2025-10-31T14:05:22Z|theta=132.77|sha256=9fde1c...|prev=72af0b...
- Scheme (
SSMCLOCK1) — the declared clock/stamp method. - UTC (
2025-10-31T14:05:22Z) — explicit human-readable time. - Secondary tick (
theta=132.77) — optional cross-check (cycle/phase/shift index). - Digest (
sha256=…) — hash of canonical record bytes (value, align, band, manifest_id, …). - Link (
prev=…) — pointer to the previous digest for forward-linked order.
Minimal canonicalization guidance (producer side):
# canonical bytes sketch
record := {value:<...>, align:<...>, band:"<...>", manifest_id:"<...>", ...}
bytes := canonical_encode(record) # stable field order & encoding
digest := sha256(bytes)
stamp := "SSMCLOCK1|" + utc_iso + "|sha256=" + digest + "|prev=" + prev_digest
6.3 Why ordering matters
Order establishes duty-of-care timing. With chaining, you can prove whether escalation happened before or after a critical band:
# replay check (receiver)
verify_chain(order):
for i in 1..N:
expect(stamp[i].prev == sha256(bytes[i-1]))
assert(sha256(bytes[i]) == stamp[i].sha256)
If someone deletes, edits, or reorders events, this verification fails.
6.4 Why humans need this (not just machines)
stamp is a defense for the person who followed policy:
# what a human can show
band -> "AMBER"
manifest_id -> "PLANT_A_v7" # defines AMBER actions
stamp -> proves timestamp and position in sequence
No screenshots, no memory battles—chain-backed truth.
6.5 How stamp prevents quiet rewriting
Tampering leaves scars:
# edit content -> digest mismatch
sha256(bytes') != stamp.sha256
# delete event -> next.prev points to missing digest
# reorder events -> prev linkage breaks
A “clean” retrospective must reconcile with the original chain, or it’s not credible.
6.6 Practical reading for non-technical teams
- value — what happened (exact).
- align — how steady/risky on a universal
(-1,+1)dial. - band — action stance under published policy.
- manifest_id — which rulebook defined that stance.
- stamp — proof this package existed then, in order, unaltered.
If any of the five are missing, you’re exposed. With all five, action is provable.
One-line takeaway (Section 6).stamp binds fact, judgment, and time into a verifiable chain—so no one can quietly rewrite history or shift blame from policy to people.
Navigation
Previous: SSMDE – The Manifest (5.0–5.6)
Next: SSMDE – Safety Bands and Human Response (7.0–7.5)
Directory of Pages
SSMDE – Table of Contents
Explore further
https://github.com/OMPSHUNYAYA/Symbolic-Mathematical-Data-Exchange
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