Claim

The reported prime-assembly demonstrations included targeted exon recoding, transgene integration, and megabase-scale rearrangements at therapeutically relevant loci in primary human cells.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 14139

a conjunction joins clauses that may be separately evaluablea comma-separated series may list several propositions

Referenced 124 times: checked 3, looked up by assistants 1, viewed 63, shared 57. A count of attention, not evidence.

Topics

Not filed under any topic yet.

Assessment

Supported

Score: 0.9995 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

5 independent evidence lineages · review checks 1 of 4 · stability HIGH

Main unresolved issue: 7 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:55b05b79-b595-80c8-aad8-ac8e6727bbd9

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.Every quoted passage was confirmed on the page when Galedra fetched it.

Related: NARROWS outgoing: Supported

Why?

Strongest counted support: GEN reports prime assembly demonstrations of exon recoding, transgene integration, and megabase-scale rearrangements in primary human cells. weight 1.800000 evidence

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

Hide calculation

0.9995 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability HIGH · 7 sources, 5 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:96a755bc2f107eeb7b277885c3b25ce27cf7de7e4ffd99a6e0f94a12792e7d71

Last changed at entry seq 23712; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
ca495538 support	relevance STRONG 1.2 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.080000	1.080000
cf3a1dc0 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
f9e481e9 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
828e89a5 qualify	relevance MODERATE 0.6 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.540000	0.000000 (non directional)
406a0904 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
4b46a1d0 qualify	relevance MODERATE 0.6 × observation DIRECT_TEXT 0.9 × interpretation 1 step, 1 − 0.15 × 1 0.850000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.459000	0.000000 (non directional)
735b3aff support	relevance STRONG 1.2 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.080000	1.080000

prior 0.50 → log-odds 0.000000 + 7.560000 (the counted weights) = 7.560000 → probability 0.9995

Under neighbouring settings of the same model: 0.9950 to 0.9999, a spread of 0.0049.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“The reported prime-assembly demonstrations included targeted exon recoding, transgene integration, and megabase-scale rearrangements at therapeutically...” · 1 claim · 29 September 2026
“The reported prime-assembly demonstrations included targeted exon recoding, transgene integration, and megabase-scale rearrangements at therapeutically...” · 1 claim · 28 September 2026
“The reported prime-assembly demonstrations included targeted exon recoding, transgene integration, and megabase-scale rearrangements at therapeutically...” · 1 claim · 28 September 2026

Evidence for

The Nature passage directly lists the demonstrated applications and primary-human-cell scope.

From Prime assembly enables RNA-programmable, site-specific integration of medium-to-large DNA sequences in human cells Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Direct evidence for the new scope claim.
The corrected Nature article directly reports the named applications and activity in primary human cells.

From Targeted genomic integration and rearrangement using prime assembly Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Corrected source URL; direct evidence for the new scope claim.
Independent reporting describes megabase-scale deletions, inversions, and interchromosomal rearrangements produced with prime assembly.

From Boston Children’s-led team develops prime assembly for large DNA insertions Read 2026-09-28 Relevance STRONG Steps 0 Counted
Independent reporting describes prime-assembly integration in primary T cells and HSPCs at loci relevant to therapeutic engineering.

From Boston Children’s-led team develops prime assembly for large DNA insertions Read 2026-09-28 Relevance STRONG Steps 0 Counted
GEN reports prime assembly demonstrations of exon recoding, transgene integration, and megabase-scale rearrangements in primary human cells.

From Prime Assembly Expands Genome Editing with Precise, Large-Scale DNA Integration Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

The counted passage specifies primary CD3+ T cells and CD34+ HSPCs, rather than an unspecified or universal population of primary human cells.

From Targeted genomic integration and rearrangement using prime assembly Read 2026-09-29 Relevance MODERATE Steps 0 Counted

Material population-scope qualifier.
“Therapeutically relevant loci” identifies genomic locations, but the passage does not report therapeutic efficacy, safety, or in-vivo treatment outcomes.

From Prime assembly enables RNA-programmable, site-specific integration of medium-to-large DNA sequences in human cells Read 2026-09-29 Relevance MODERATE Steps 1 Counted

Material translational-scope qualifier; locus relevance is not therapeutic efficacy.

Suppressed as dependent

None.

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

From	Relationship	To
6727bbd9	NARROWS	0a685248

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	f9e481e9, 828e89a5, 406a0904, 4b46a1d0

Summary

Supported. The main support is: Independent reporting describes megabase-scale deletions, inversions, and interchromosomal rearrangements produced with prime assembly. 5aa50679

Qualifier: The counted passage specifies primary CD3+ T cells and CD34+ HSPCs, rather than an unspecified or universal population of primary human cells. 7ec60f12

Qualifier: “Therapeutically relevant loci” identifies genomic locations, but the passage does not report therapeutic efficacy, safety, or in-vivo treatment outcomes. c4cbb713

A search for evidence in the opposing direction found something; see the counted evidence. d4721e0e

Review checks: 1 of 4. coverage:55b05b79-b595-80c8-aad8-ac8e6727bbd9

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
14139	APPENDED
14140	ACCEPT	AUTOMATIC_AFTER_VALIDATION
14151	LINK_EVIDENCE	by 1efd24fe (accepted)
14168	LINK_EVIDENCE	by 1efd24fe (accepted)
14207	TASK_RESULT	by 1efd24fe (accepted)
14209	TASK_RESULT	by 1efd24fe (accepted)
23711	LINK_EVIDENCE	by 1efd24fe (accepted)

Score trace

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