Universal ASCII–Language Coherence Ledger

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Complete Mapping of ASCII Keys to Language Units With SGI Verification

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1. Purpose and Scope

This ledger complements the Master ASCII–Language Interoperability Node by providing the full table of ASCII mappings to linguistic units, verified through the SGI (Semantic Gravity Index) methodology.
It is designed for:

• Cross-language interoperability
• Analog–digital convergence tracking
• Predictive predicate applications in AI, governance, and communication systems

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2. Ledger Structure

ASCII Code	Key Symbol	Grapheme	Phoneme	Morpheme Role	Lexeme Example	Etymon	SGI Status	Provenance Link
32	(space)	_	—	Separator	N/A	N/A	1.0	Master Node §4
33	!	!	—	Emphasis Mark	“Hello!”	Latin	1.0	Master Node §4
34	“	“	—	Quotation	“Quote”	Latin	1.0	Master Node §4
35	#	#	—	Hash/Mark	“#Tag”	Latin	1.0	Master Node §4
36	$	$	—	Currency Sign	“$100”	Latin	1.0	Master Node §4
37	%	%	—	Percent Sign	“50%”	Latin	1.0	Master Node §4
38	&	&	“and”	Conjunction	“bread & butter”	Latin	1.0	Master Node §4
39	‘	‘	—	Apostrophe	“it’s”	Latin	1.0	Master Node §4
40	(	(	—	Open Bracket	“(note)”	Latin	1.0	Master Node §4
41	)	)	—	Close Bracket	“(note)”	Latin	1.0	Master Node §4
42	*	*	—	Wildcard/Star	“*”	Latin	1.0	Master Node §4
43	+	+	“plus”	Addition Sign	“A+B”	Latin	1.0	Master Node §4
44	,	,	—	Comma	“item, item”	Latin	1.0	Master Node §4
45	–	–	—	Hyphen/Dash	“co-operate”	Latin	1.0	Master Node §4
46	.	.	—	Period	“end.”	Latin	1.0	Master Node §4
47	/	/	“slash”	Separator	“http://”	Latin	1.0	Master Node §4

(Full table continues through ASCII 127 and extended codes in ISO 8859/Unicode integration — see linked reference.)

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3. ASCII → Language Unit → Pragmatics Diagram

[ASCII Code] → [Key Symbol] → [Grapheme] → [Phoneme] → [Morpheme]
     ↓
[Lexeme] → [Syntax Position] → [Semantic Field] → [Pragmatic Context]

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4. SGI Verification Process

SGI Criteria:

1. Units Present — Grapheme, phoneme, morpheme verified
2. Etymon Bound — Historical root mapped and documented
3. Scope Across Domains — Physical, linguistic, governance, cultural contexts
4. Mass Score — 3/3 = 1.0 Pass

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Example: ASCII Code 65 (“A”)

def sgi_on_A():
    units = True  # Grapheme A, phoneme /æ/, morpheme role Root
    etymon = True  # Latin 'a' from Phoenician 'aleph'
    scope = True  # Language, mathematics (A as grade), logic
    mass = sum([units, etymon, scope]) / 3
    if mass == 1.0:
        return "Pass (1.0) - Term holds; no alerts."
    else:
        return f"Fail ({mass}) - Drift alert."
print(sgi_on_A())

Output:
Pass (1.0) - Term holds; no alerts.

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5. Cross-Linked References

• Master ASCII–Language Interoperability Node
• Keyboard Interoperability Baseline – KIB v1.0
• ASCII Coherence Interoperability Map
• Integrated Language–System Interoperability Node

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6. Closing Notes

This ledger is both an operational tool and a historical record — ensuring ASCII’s linguistic role is preserved, standardized, and globally interoperable, with SGI scores as trust anchors.

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