Rule of Three Sources Stat Canvass Lookup

Canvass claim-by-source support using explicit caller source-dependency groups and minimum independent count; copied wire sources count once and three is not a universal truth-verification rule.

Description

A claim-by-source matrix makes corroboration coverage visible.

A claim-by-source matrix makes corroboration coverage visible. Multiple sources in one dependency group count once for each claim.^[1]

Enter nonempty unique claims, nonblank source-group labels, aligned rectangular binary claim×source matrix and integer minimum 1–128. Return group counts and claims strictly below minimum.

When to use Rule of Three Sources Stat Canvass Lookup

Use Rule of Three Sources Stat Canvass Lookup when you need to evaluate the supplied records under the calculation and evidence rules below. No independence is verified and three is not imposed as a universal truth rule.

Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.

How to use Rule of Three Sources Stat Canvass Lookup and understand its results

Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
Enter claimLabels, sourceDependencyGroupIds, claimSourceCorroborationFlags, callerMinimumIndependentGroups using the field table and calculation rules, then run the tool.
Read distinctCorroboratingGroupCounts, claimsBelowCallerCanvassPolicy. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
claimLabels	Claim labels	list of string	Required
sourceDependencyGroupIds	Source dependency group ids	list of string	Required
claimSourceCorroborationFlags	Claim source corroboration flags	list of list of number	Required
callerMinimumIndependentGroups	Caller minimum independent groups	number	Required

Enter nonempty unique claims, nonblank source-group labels, aligned rectangular binary claim×source matrix and integer minimum 1–128. Return group counts and claims strictly below minimum.

claimCount=size(unique groups with rowFlag1)

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
distinctCorroboratingGroupCounts	Distinct corroborating group counts	list of number
claimsBelowCallerCanvassPolicy	Claims below caller canvass policy	list of string

json

{
  "input": {
    "claimLabels": [
      "A",
      "B"
    ],
    "sourceDependencyGroupIds": [
      "wire",
      "wire",
      "local"
    ],
    "claimSourceCorroborationFlags": [
      [
        1,
        1,
        0
      ],
      [
        1,
        0,
        1
      ]
    ],
    "callerMinimumIndependentGroups": 2
  },
  "output": {
    "distinctCorroboratingGroupCounts": [
      1,
      2
    ],
    "claimsBelowCallerCanvassPolicy": [
      "A"
    ]
  }
}

Limitations and assumptions

No independence is verified and three is not imposed as a universal truth rule.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Matrices are limited to 128 rows and 128 entries per row. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Two Independent Sources Verification Rule Checker: Independent corroboration counts distinct provenance groups rather than repeated copies of one origin. Source records and group identity serve different roles. For a complementary task, use Newsworthiness Proximity Prominence Scoring Grid: Newsworthiness grids depend on explicit scores, weights and evidence. Available-evidence normalization must not imply full completeness.

References

Rule of Three Sources Stat Canvass Lookup — tool.io

Similar or alternative tools

Two Independent Sources Verification Rule Checker
Independent corroboration counts distinct provenance groups rather than repeated copies of one origin. Source records and group identity serve different roles.
Newsworthiness Proximity Prominence Scoring Grid
Newsworthiness grids depend on explicit scores, weights and evidence. Available-evidence normalization must not imply full completeness.