PREREGISTRATION INTEGRITY · 0.2-PR1

Prove the rules
came before the result.

A document labeled “preregistered” is not enough. Profile 0.2-PR1 verifies an immutable canonical root, an independent pre-activity timestamp, accountable signatures, and every parent-linked amendment through submission.

Verify a history ↓Download template Open contract Study template

1IMMUTABLE ROOT

8FROZEN COMMITMENTS

0OUTCOME-INFORMED CHANGES

0RETROACTIVE RULES

01 / COMMITMENT INTEGRITY

The timeline is
part of the evidence.

Robot identity, cohort selection, endpoints, safety, operations, telemetry keys, and analysis are only prospective commitments when a third-party receipt proves they predate benchmark activity.

01FREEZE BEFORE ACTIVITY

The canonical document and eight critical commitments must receive an independently verifiable timestamp before preflight, screening, or resident exposure.

02NEVER OVERWRITE HISTORY

Every amendment is a new document whose parent digest equals the immediately preceding document. The original registration remains immutable.

03CHANGE WITHOUT OUTCOMES

Amendment decisions cannot use current-cohort outcomes, aggregate W, or participant task logs. Outcome-informed work belongs in a future study.

04MATERIAL MEANS NEW CLAIM

A material robot, endpoint, safety, operations, or analysis change starts a new claim revision and cannot inherit prior exposure.

02 / APPEND-ONLY PROVENANCE

Amend forward.
Never rewrite backward.

The root remains frozen. Each amendment carries its own timestamp receipt and points to the previous document digest. One broken parent link makes the reported history incomplete.

CANONICAL CHAINH_k = SHA-256(JCS(D_k))

parent(D_k) = H_k−1

MATERIAL CHANGE → NEW CLAIM REVISION

03 / LOCAL REPRODUCTION

Follow every hash.
Rebuild every count.

The browser verifier checks root timing, target boundaries, receipt imprints, accountable signatures, eight commitments, amendment order, outcome access, retroactivity, claim revisions, and independent assurance.

LOCAL · ZERO UPLOADPREREGISTRATION 0.2-PR1 VERIFIER

FREEZE + AMENDMENT INTEGRITY MANIFEST

{
  "profile_version": "0.2-PR1",
  "target_certification": "WANTED_WILD",
  "protocol": {
    "canonicalization": "RFC8785_JCS",
    "hash": "SHA-256",
    "original_rule": "immutable_timestamped_registration_before_first_benchmark_activity",
    "amendment_rule": "append_only_parent_linked_no_overwrite",
    "outcome_access_rule": "no_current_cohort_outcomes_aggregate_W_or_participant_task_logs_before_amendment",
    "material_change_rule": "new_claim_revision_no_shared_exposure",
    "retroactivity_rule": "never_apply_amendments_to_prior_exposure",
    "public_rule": "public_or_embargoed_receipt_before_activity_public_history_at_submission"
  },
  "original": {
    "study_id": "SYNTHETIC-STUDY-001",
    "claim_revision_id": "claim-r1",
    "document_uri": "https://example.org/registry/wanted-study-001/preregistration.json",
    "document_sha256": "b0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcde",
    "schema_uri": "https://embodied-arena.chrishongap.chatgpt.site/wanted-10k/preregistration.schema.json",
    "schema_sha256": "b20123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "registered_at": "2025-12-01T00:00:00Z",
    "first_preflight_trial_at": "2025-12-15T00:00:00Z",
    "first_screening_decision_at": "2026-01-01T00:00:00Z",
    "first_resident_hour_at": "2026-02-01T00:00:00Z",
    "registry_record_uri": "https://example.org/registry/wanted-study-001",
    "registry_record_id": "registry:wanted-study-001:v1",
    "registry_record_immutable": true,
    "withdrawal_leaves_tombstone": true,
    "sponsor_signature_sha256": "b30123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "investigator_signature_sha256": "b40123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "receipt": {
      "method": "immutable_registry_receipt",
      "token_uri": "https://example.org/registry/receipts/a9.json",
      "token_sha256": "a9a0123456789abcdef0123456789abcdef0123456789abcdef0123456789abc",
      "message_imprint_sha256": "b0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcde",
      "issued_at": "2025-12-01T00:00:00Z",
      "signature_verified": true,
      "authority_independent_of_sponsor": true
    }
  },
  "commitments": {
    "robot_description_sha256": "e10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "baseline_policy_artifact_sha256": "e20123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "cohort_and_sampling_plan_sha256": "e30123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "endpoint_rules_sha256": "e40123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "safety_plan_sha256": "e50123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "operations_plan_sha256": "e60123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "telemetry_key_manifest_sha256": "e70123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "analysis_plan_sha256": "e80123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd"
  },
  "amendments": [
    {
      "amendment_id": "A-001",
      "parent_document_sha256": "b0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcde",
      "amended_document_sha256": "c10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
      "classification": "clarification",
      "rationale": "Clarify the published UTC clock-source wording without changing any decision rule.",
      "changed_sections": [
        "telemetry.clock_sync"
      ],
      "registered_at": "2025-12-10T00:00:00Z",
      "effective_at": "2025-12-10T00:00:00Z",
      "prior_exposure_hours": 0,
      "current_cohort_outcomes_accessed": false,
      "aggregate_w_accessed": false,
      "participant_task_logs_accessed": false,
      "retroactive_application": false,
      "creates_new_claim_revision": false,
      "claim_revision_id": "claim-r1",
      "receipt": {
        "method": "immutable_registry_receipt",
        "token_uri": "https://example.org/registry/receipts/a001.json",
        "token_sha256": "a001a0123456789abcdef0123456789abcdef0123456789abcdef0123456789a",
        "message_imprint_sha256": "c10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
        "issued_at": "2025-12-10T00:00:00Z",
        "signature_verified": true,
        "authority_independent_of_sponsor": true
      }
    },
    {
      "amendment_id": "A-002",
      "parent_document_sha256": "c10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
      "amended_document_sha256": "d10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
      "classification": "administrative",
      "rationale": "Record an investigator contact change without altering eligibility, outcomes, operations, or analysis.",
      "changed_sections": [
        "study.principal_investigator_contact"
      ],
      "registered_at": "2026-03-01T00:00:00Z",
      "effective_at": "2026-03-01T00:00:00Z",
      "prior_exposure_hours": 672,
      "current_cohort_outcomes_accessed": false,
      "aggregate_w_accessed": false,
      "participant_task_logs_accessed": false,
      "retroactive_application": false,
      "creates_new_claim_revision": false,
      "claim_revision_id": "claim-r1",
      "receipt": {
        "method": "immutable_registry_receipt",
        "token_uri": "https://example.org/registry/receipts/a002.json",
        "token_sha256": "a002a0123456789abcdef0123456789abcdef0123456789abcdef0123456789a",
        "message_imprint_sha256": "d10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
        "issued_at": "2026-03-01T00:00:00Z",
        "signature_verified": true,
        "authority_independent_of_sponsor": true
      }
    }
  ],
  "claimed": {
    "amendment_count": 2,
    "administrative_amendments": 1,
    "clarification_amendments": 1,
    "safety_hotfix_amendments": 0,
    "material_amendments": 0,
    "post_activity_amendments": 1,
    "outcome_informed_amendments": 0,
    "retroactive_amendments": 0,
    "material_amendments_in_same_claim": 0,
    "chain_breaks": 0
  },
  "evidence": {
    "controlled_amendment_register_uri": "https://example.org/wanted-preregistration-amendments.json",
    "controlled_amendment_register_sha256": "f10123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "public_history_uri": "https://example.org/registry/wanted-study-001/history",
    "public_history_sha256": "f20123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "receipt_verification_report_sha256": "f30123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd",
    "public_or_embargoed_before_activity": true,
    "public_history_complete_at_submission": true
  },
  "assessor": {
    "name": "Synthetic Registration Auditor",
    "organization": "Independent Example Assurance",
    "independent_of_sponsor": true,
    "attested": true,
    "signed_at": "2027-03-10T12:00:00Z"
  }
}

READY TO VERIFY HISTORY

Paste registration receipts, document digests, and aggregate amendment facts only. No participant data leaves this browser.

04 / DESIGN BASIS

Research transparency,
made executable.

These sources inform the evidence topology. WANTED remains vendor-neutral and does not require one registry or timestamp operator.

OSF REGISTRATIONSTimestamped, read-only registration practicePRIMARY SOURCE ↗RFC 3161Independent proof that a datum existed before a timePRIMARY SOURCE ↗SPIRIT 2025Complete protocols and transparent amendment historyPRIMARY SOURCE ↗W3C PROV-OExplicit derivation and provenance relationshipsPRIMARY SOURCE ↗

NO PROSPECTIVE PROOF, NO CONFIRMATORY CLAIM

A late, mutable, outcome-informed, or retroactively amended plan cannot support a ranked WANTED claim.

OPEN AUDIT PACK →

Prove the rulescame before the result.

The timeline ispart of the evidence.

Amend forward.Never rewrite backward.

Follow every hash.Rebuild every count.

Research transparency,made executable.

Prove the rules
came before the result.

The timeline is
part of the evidence.

Amend forward.
Never rewrite backward.

Follow every hash.
Rebuild every count.

Research transparency,
made executable.