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Testimony Common Origin Pair Flag

Compare explicit testimony-origin identifiers only when both origins are recorded as known.

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Description

Compare known testimony origins and keep unknown origins distinct from common origin.

Evidence records distinguish claims, source origins, confidence labels, logical scope and access status. Repeated citations may share an origin rather than provide independent support; an unknown origin is not proof of independence. A recorded support or witness link does not establish entailment, truth or a valid inference.

Compare known testimony origins and keep unknown origins distinct from common origin.

When to use this tool

Use Testimony Common Origin Pair Flag when checking the stated evidence, source, confidence or logical-label convention.

How to use the tool and how it works

  1. Enter firstOriginCode, secondOriginCode, firstKnown, secondKnown. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read comparable, commonOrigin. Inspect comparable, commonOrigin before interpreting the associated values.

Require nonempty origin code only when its corresponding known flag is true. comparable means both origins known; commonOrigin additionally requires literal equality.1

Input fieldMeaning and unitsAccepted input
firstOriginCodeFirst Origin CodeRequired. Text; maximum UTF-16 length 8192.
secondOriginCodeSecond Origin CodeRequired. Text; maximum UTF-16 length 8192.
firstKnownFirst KnownRequired. Boolean.
secondKnownSecond KnownRequired. Boolean.
Output fieldInterpretationReturned shape
comparableComparableRequired. Boolean.
commonOriginFalse when either origin is unknown; this does not establish independent testimony.Required. Boolean.
json
{
  "input": {
    "firstOriginCode": "SRC17",
    "secondOriginCode": "SRC17",
    "firstKnown": true,
    "secondKnown": true
  },
  "output": {
    "comparable": true,
    "commonOrigin": true
  }
}

Limitations and assumptions

  • Unknown origins give commonOrigin=false without proving independence; source codes do not establish actual testimonial dependence or credibility.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.

Alternative or Complementary methods

Inspect original evidence and use appropriate complete logical/statistical analysis, preserving uncertainty, provenance and applicable access/reuse permissions.

References

  1. Calculation and input contract: epistemology/testimony-common-origin-pair-flag — tool.io

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