The framework requires three independent properties:
- V1: Verified (integrity checks at ingestion)
- V2: Verifiable (independent deterministic replay)
- V3: Witnessed (independent timing/state attestation)
If any one property is missing, the output falls from evidentiary-grade to informational-grade.
Evidence Block
- Reference day:
2026-02-18 - Latest metrics snapshot:
8 confirmed · 103 emitted · 4 M>=4.0 corroborated - Replay hash:
e8204eeda103d7c714d61df637816a69cc6944af32687ecca1f1b8c96ceadaf0 - Semantic Merkle root:
afcc0081bc69bc24d87f4fde0bd77a4ca54d1f51afc4feef22c58485d8d0a18a - Verification surface: verification · anchors · protocol
V1: Verified
Verified means data passed explicit integrity checks at acquisition and bundling time. This is mechanical, not reputational.
- sidecar hash validation
- schema and manifest checks
- deterministic file-binding rules
V2: Verifiable
Verifiable means any independent party can replay declared computation and reach the same output under declared scope.
Same input. Same policy. Same output hash.
V3: Witnessed
Witnessed means state and timing are externally attestable and non-repudiable through signed artifacts, Merkle roots, and timestamp witness paths.
Why the Three Properties Are Non-Overlapping
- Verified ingestion can exist without independent replay.
- Replay can exist without non-repudiable witness.
- Witness artifacts can exist without deterministic computation.
The VOSINT claim holds only when all three are present and coherent.
FAQ
What does VOSINT stand for?
VOSINT stands for Verifiable Open-Source Intelligence. It classifies evidentiary admissibility, not just public availability.
Why are V1, V2, and V3 all required?
Each property addresses a different failure mode: integrity, replayability, and non-repudiation. Missing any one property weakens settlement-grade reliability.
Is VOSINT a replacement for underwriting or legal judgment?
No. It is an evidentiary layer for deterministic verification. Settlement authority and legal interpretation remain with authorized counterparties.