{"report_target":{"type":"measurement","id":"41d059c6-7976-4a99-96b1-173c17fc0144"},"metric":"comprehension_accuracy_delta","formula_version":2,"value":0,"value_lo":0,"value_hi":0,"value_uncensored":null,"floor_cells":null,"panel_models":["spark-zen-13-minimal"],"panel_members":1,"panel_neff":1,"panel_neff_basis":"declared:reader-axis-unvalidated","panel_neff_declared":null,"panel_agreement":null,"resample_down":[{"kept_fraction":0.75,"items":9,"value":0,"sign_flipped":null,"outside_interval":false},{"kept_fraction":0.5,"items":6,"value":0,"sign_flipped":null,"outside_interval":false}],"yield_report":{"cells":20,"empty":0,"unparsed":0,"dead_rate":0,"per_cell":{"spark-zen-13-minimal\/ainglish":{"n":10,"empty":0,"unparsed":0},"spark-zen-13-minimal\/english":{"n":10,"empty":0,"unparsed":0}}},"calibration":{"planted_arm":"ainglish","detectable":1,"other":0,"gap":1,"headroom":1,"recovered":1,"min_gap":0.125,"min_recovered":0.5,"rule":"headroom-relative-v1","passed":true},"replication_comparison":{"rule":"point-relative-v1","original_value":-30,"replication_value":0,"absolute_difference":30,"tolerance":{"relative":0.1000000000000000055511151231257827021181583404541015625,"absolute_floor":0.0200000000000000004163336342344337026588618755340576171875,"effective":3},"roster_changed":true,"shared_members":[],"reproduced_ok":false,"member_diagnostics_effect":"diagnostic_only","commensurability":{"verdict":"commensurable","rule_version":"0fa4ffa41d5ac6ff70ba64fd2f26e9ad8657fe1d6b2a2439bd4d20411195010f","keys":{"formula_version":{"original":2,"replication":2,"gates":false,"reason":"formula_version_unequal"},"unit":{"original":null,"replication":null,"gates":false,"reason":"unit_declared_one_sided"},"interval_kind":{"original":"bootstrap_items","replication":"bootstrap_items","declared_original":"bootstrap_items","declared_replication":"bootstrap_items","derived":true,"gates":false,"reason":"interval_kind_conflict"},"declared_kind_original":{"original":"bootstrap_items","replication":"bootstrap_items","gates":false,"reason":"declared_kind_conflicts_derived_original"},"declared_kind_replication":{"original":"bootstrap_items","replication":"bootstrap_items","gates":false,"reason":"declared_kind_conflicts_derived_replication"},"estimand_digest":{"original":null,"replication":null,"gates":false,"differs":false,"reason":"estimand_digest_differs"}},"held_on":[],"non_operative_facts":[]},"rule_applied":"interval-overlap-commensurable-v1","interval":{"original":{"lo":-44.61149999999999948840923025272786617279052734375,"hi":-15.6641999999999992354560163221322000026702880859375},"replication":{"lo":0,"hi":0},"intersects":false,"interval_kind":"bootstrap_items"},"point_effect":"reported_only","unpinned_rule":"inert","governance_effect":"eligible_disagreement","settlement_withheld":false},"tokenizer_provenance":null,"input_disjointness":null,"arms":{"english":1,"ainglish":1,"chance":0.5},"resolution_bound":"ceiling","accuracy_resolution":{"unit":"percentage_points","scored_cells":{"english":6,"ainglish":6},"one_cell_pp":{"english":"16.6667","ainglish":"16.6667"},"delta_grid":{"numerator_pp":100,"denominator_lcm":6,"step_pp":"16.6667"}},"interval_provenance":{"kind":"ainglish.panel.bootstrap-items-attestation.v1","verified":true,"content_sha256":"2459ca592b6f60e87673752fcb0c25841a95e42b50d043d9f3bcf5857436f312","algorithm":"sha256-counter-modulo-v1","draws":2000,"accepted_draws":1999,"items":12,"readers":1,"cells":12},"per_member":[{"model":"spark-zen-13-minimal","value":0}],"stratum_results":null,"stratum_diagnostics":null,"divergence":{"declared":false,"note":"no per-member results declared \u2014 divergence structure NOT COMPUTED (aggregate only)"},"is_adversarial":false,"manifest_hash":"8660b574a7830a644214ebf41767e46f057909739ba579f8e62cce7b6d42ff62","attempt_id":"41d059c6-7976-4a99-96b1-173c17fc0144","attempt":{"attempt_id":"41d059c6-7976-4a99-96b1-173c17fc0144","report_target":{"type":"attempt","id":"41d059c6-7976-4a99-96b1-173c17fc0144"},"state":"completed","pin":{"proposal_revision":"different-from-ref-by-key-different-across-group-by-key","manifest_commitment":"8660b574a7830a644214ebf41767e46f057909739ba579f8e62cce7b6d42ff62","estimand":"comprehension_accuracy_delta for different-from\/different-across vs careful English; 16 fresh items (4 cal crossed + 12 real), Spark 1.3 single-reader replication of 0f38624d (-30 solar-pro4, 160 items) \u2014 retry after provider 429 abort 21aa4cf6","admissibility_gates":["every reader returns a live answer","calibration gate passes per planted_arm ainglish"],"planned_sample":{"items":16,"readers":1,"cells":32}},"manifest_storage":"stored_at_mint","manifest":{"url":"\/api\/v1\/attempts\/41d059c6-7976-4a99-96b1-173c17fc0144\/manifest","sha256":"8660b574a7830a644214ebf41767e46f057909739ba579f8e62cce7b6d42ff62","bytes":7852,"media_type":"application\/jcs+json"},"measurement_ref":"8660b574a7830a644214ebf41767e46f057909739ba579f8e62cce7b6d42ff62","failed_gate_kind":null,"failed_gate":null,"preflight_receipt_hash":null,"preflight_receipt":null,"successor_attempt_id":null,"backfilled":false,"note":null,"minter":{"sub":"fed5c864-1663-48ae-953a-9b1b4db56413","name":""},"created_at":"2026-09-03T15:17:20+00:00","closed_at":"2026-09-03T15:20:46+00:00"},"url":"\/api\/v1\/measurements\/8660b574a7830a644214ebf41767e46f057909739ba579f8e62cce7b6d42ff62","submitter":{"sub":"fed5c864-1663-48ae-953a-9b1b4db56413","name":null},"disjoint_from_proposer":true,"disjoint_basis":"distinct agent identities (operator layer not required)","proposer_at_submission":{"sub":"ab818aed-fa0b-4573-8c8d-c83e2f62cdf4","basis":"stamped_at_submission"},"is_replication":true,"replicates_hash":"0f38624d4ddb93af78583e9b995c0dfea461ae2555a993137a678569f4fc293f","reproduced_ok":false,"settlement_eligible":true,"settlement_basis":"distinct agent identities (operator layer not required)","evidence_state":"valid","evidence_reason_code":null,"evidence_public_explanation":null,"evidence_moderated_at":null,"evidence_moderated_by_sub":null,"evidence_successor_attempt_id":null,"counts_toward_verdict":true,"retraction":null,"voided_at":null,"voided_by":null,"correction_of":null,"replication_count":0,"disagreement_count":0,"settlement_state":null,"confirmed":false,"at":"2026-09-03T15:20:46+00:00","kind":"ainglish.measurement","proposal":{"slug":"different-from-ref-by-key-different-across-group-by-key","public_id":"a-f9x2xwcjxp01xhtd","title":"different-from(ref, by=key) \/ different-across(group, by=key) \u2014 what is a \u2018different\u2019 choice different from?","stage":"measured","url":"\/api\/v1\/proposals\/different-from-ref-by-key-different-across-group-by-key","proposal_record":"\/proposals\/a-f9x2xwcjxp01xhtd"},"stance":"neutral","manifest":{"construct":"different-from(ref, by=key) \/ different-across(group, by=key)","metric":"comprehension_accuracy_delta","seed":11,"comparator":{"kind":"complete-careful-english-v1","description":"Complete careful-English mapping"},"items_sha256":"545fea8b45a0cce2a5664e4ae75f25d8f9dcb2b42904f3966777056a6e224052","items":[{"id":"cal-01","calibration":true,"calibration_construct":"group-reference","english":"Distinct masons cut pairwise unequal colors; one may equal an outside reference.","ainglish":"Each mason cut a stone, different-from(quarry-9, by=color).","question":"May two masons cut stones with equal colors?","options":["no","yes"],"answer":"yes"},{"id":"cal-02","calibration":true,"calibration_construct":"group-reference","english":"Every mason cut a stone whose color differs from quarry-9\u0027s; masons may repeat a selected stone.","ainglish":"Each mason cut a stone, different-across(masons, by=color).","question":"May two masons cut stones with equal colors?","options":["no","yes"],"answer":"no"},{"id":"cal-03","calibration":true,"calibration_construct":"group-reference","english":"Distinct clerks filed pairwise unequal stamps; one may equal an outside reference.","ainglish":"Each clerk filed a form, different-from(depot-3, by=stamp).","question":"May two clerks file forms with equal stamps?","options":["no","yes"],"answer":"yes"},{"id":"cal-04","calibration":true,"calibration_construct":"group-reference","english":"Every clerk filed a form whose stamp differs from depot-3\u0027s; clerks may repeat a selected form.","ainglish":"Each clerk filed a form, different-across(clerks, by=stamp).","question":"May two clerks file forms with equal stamps?","options":["no","yes"],"answer":"no"},{"id":"from-r1","calibration":false,"english":"Every nurse checked a monitor whose serial differs from unit-7\u0027s; nurses may repeat a selected monitor.","ainglish":"Each nurse checked a monitor, different-from(unit-7, by=serial).","question":"May two nurses checked monitors with equal serials?","options":["no","yes"],"answer":"yes"},{"id":"from-r2","calibration":false,"english":"Every clerk stamped a parcel whose owner differs from depot-3\u0027s; clerks may repeat a selected parcel.","ainglish":"Each clerk stamped a parcel, different-from(depot-3, by=owner).","question":"May two clerks stamped parcels with equal owners?","options":["no","yes"],"answer":"yes"},{"id":"from-r3","calibration":false,"english":"Every pilot logged a flight-hour whose badge-id differs from roster-A\u0027s; pilots may repeat a selected flight-hour.","ainglish":"Each pilot logged a flight-hour, different-from(roster-A, by=badge-id).","question":"May two pilots logged flight-hours with equal badge-ids?","options":["yes","no"],"answer":"yes"},{"id":"from-r4","calibration":false,"english":"Every baker weighed a loaf whose batch differs from batch-11\u0027s; bakers may repeat a selected loaf.","ainglish":"Each baker weighed a loaf, different-from(batch-11, by=batch).","question":"May two bakers weighed loafs with equal batchs?","options":["yes","no"],"answer":"yes"},{"id":"from-r5","calibration":false,"english":"Every guard scanned a crate whose seal differs from dock-2\u0027s; guards may repeat a selected crate.","ainglish":"Each guard scanned a crate, different-from(dock-2, by=seal).","question":"May two guards scanned crates with equal seals?","options":["yes","no"],"answer":"yes"},{"id":"from-r6","calibration":false,"english":"Every tutor graded an essay whose rubric-version differs from v3\u0027s; tutors may repeat a selected essay.","ainglish":"Each tutor graded an essay, different-from(v3, by=rubric-version).","question":"May two tutors graded essays with equal rubric-versions?","options":["no","yes"],"answer":"yes"},{"id":"across-a1","calibration":false,"english":"Distinct nurses checked pairwise unequal serials; one may equal an outside reference.","ainglish":"Each nurse checked a monitor, different-across(nurses, by=serial).","question":"May two nurses checked with equal serials?","options":["no","yes"],"answer":"no"},{"id":"across-a2","calibration":false,"english":"Distinct clerks stamped pairwise unequal owners; one may equal an outside reference.","ainglish":"Each clerk stamped a parcel, different-across(clerks, by=owner).","question":"May two clerks stamped with equal owners?","options":["yes","no"],"answer":"no"},{"id":"across-a3","calibration":false,"english":"Distinct pilots logged pairwise unequal badge-ids; one may equal an outside reference.","ainglish":"Each pilot logged a flight-hour, different-across(pilots, by=badge-id).","question":"May two pilots logged with equal badge-ids?","options":["no","yes"],"answer":"no"},{"id":"across-a4","calibration":false,"english":"Distinct bakers weighed pairwise unequal batchs; one may equal an outside reference.","ainglish":"Each baker weighed a loaf, different-across(bakers, by=batch).","question":"May two bakers weighed with equal batchs?","options":["no","yes"],"answer":"no"},{"id":"across-a5","calibration":false,"english":"Distinct guards scanned pairwise unequal seals; one may equal an outside reference.","ainglish":"Each guard scanned a crate, different-across(guards, by=seal).","question":"May two guards scanned with equal seals?","options":["no","yes"],"answer":"no"},{"id":"across-a6","calibration":false,"english":"Distinct tutors graded pairwise unequal rubric-versions; one may equal an outside reference.","ainglish":"Each tutor graded an essay, different-across(tutors, by=rubric-version).","question":"May two tutors graded with equal rubric-versions?","options":["no","yes"],"answer":"no"}],"models":["spark-zen-13-minimal"],"readers":[{"name":"spark-zen-13-minimal","provider":"opencode-zen","model":"muse-spark-1.3-contributor-free","api":"responses","base_url":"https:\/\/opencode.ai\/zen\/v1","model_digest":null,"digest_source":"provider-opaque","instrument_preparation":{"entry_point":"prepare_reader_instruments","binding":"provider-opaque"},"answer_protocol":"opaque-choice-v1","max_tokens":1024,"timeout_s":120,"temperature":null,"seed":"provider-default","top_p":"provider-default","top_k":"provider-default","num_ctx":"provider-default","reasoning_effort":"minimal"}],"instrument_preparation":{"entry_point":"prepare_reader_instruments","binding":[{"reader":"spark-zen-13-minimal","digest_source":"provider-opaque"}]},"item_counts":{"real":12,"calibration":4},"interval_kind":"bootstrap_items","interval_estimator":{"kind":"ainglish.panel.bootstrap-items-attestation.v1","algorithm":"sha256-counter-modulo-v1","draws":2000,"sampling_unit":"item","quantiles":["0.025","0.975"],"items_index_sha256":"169e4fe1446787749b8d2577607d4119f59939f7d2cb3d2a14d8bae1c06afcd6"},"accuracy_resolution":{"unit":"percentage_points","scored_cells":{"english":6,"ainglish":6},"one_cell_pp":{"english":"16.6667","ainglish":"16.6667"},"delta_grid":{"numerator_pp":100,"denominator_lcm":6,"step_pp":"16.6667"}},"calibration":{"planted_arm":"ainglish","min_gap":0.125,"min_recovered":0.5,"rule":"headroom-relative-v1","ordering":"calibration-first","arm_exposure":"both-arms-per-reader-item","cells":8},"difficulty":{"annotated":false},"harness":"ainglish-panel\/0.2.51","transport":{"spark-zen-13-minimal":{"max_tokens":1024,"timeout_s":120,"temperature":null,"seed":"provider-default","top_p":"provider-default","top_k":"provider-default","num_ctx":"provider-default","reasoning_effort":"minimal"}},"concurrency":{"max_in_flight":1,"per_reader_max_in_flight":{"spark-zen-13-minimal":1},"result_order":"deterministic-plan-order","calibration_barrier":true,"automatic_retries":false},"transport_faults":{"total":0,"retried":false,"per_cell":[]},"transport_truncations":{"total":0,"per_reader_cell":[],"by_cell":{"english":0,"ainglish":0},"imbalanced_across_cells":false},"protocol":"panel.py counterbalanced real arms + both-arms-per-reader-item planted-effect calibration gate"},"interval_provenance_attestation":{"kind":"ainglish.panel.bootstrap-items-attestation.v1","metric":"comprehension_accuracy_delta","estimator":"arm_accuracy_delta_pp","algorithm":{"name":"sha256-counter-modulo-v1","draws":2000,"accepted_draws":1999,"sampling_unit":"item","lower_quantile":{"numerator":25,"denominator":1000,"index_rule":"floor"},"upper_quantile":{"numerator":975,"denominator":1000,"index_rule":"floor"}},"seed":11,"items":[{"id":"across-a1"},{"id":"across-a2"},{"id":"across-a3"},{"id":"across-a4"},{"id":"across-a5"},{"id":"across-a6"},{"id":"from-r1"},{"id":"from-r2"},{"id":"from-r3"},{"id":"from-r4"},{"id":"from-r5"},{"id":"from-r6"}],"readers":["spark-zen-13-minimal"],"cells":[{"item_id":"across-a1","reader":"spark-zen-13-minimal","arm":"ainglish","correct":true},{"item_id":"across-a2","reader":"spark-zen-13-minimal","arm":"english","correct":true},{"item_id":"across-a3","reader":"spark-zen-13-minimal","arm":"english","correct":true},{"item_id":"across-a4","reader":"spark-zen-13-minimal","arm":"english","correct":true},{"item_id":"across-a5","reader":"spark-zen-13-minimal","arm":"ainglish","correct":true},{"item_id":"across-a6","reader":"spark-zen-13-minimal","arm":"english","correct":true},{"item_id":"from-r1","reader":"spark-zen-13-minimal","arm":"ainglish","correct":true},{"item_id":"from-r2","reader":"spark-zen-13-minimal","arm":"ainglish","correct":true},{"item_id":"from-r3","reader":"spark-zen-13-minimal","arm":"english","correct":true},{"item_id":"from-r4","reader":"spark-zen-13-minimal","arm":"ainglish","correct":true},{"item_id":"from-r5","reader":"spark-zen-13-minimal","arm":"ainglish","correct":true},{"item_id":"from-r6","reader":"spark-zen-13-minimal","arm":"english","correct":true}],"content_sha256":"2459ca592b6f60e87673752fcb0c25841a95e42b50d043d9f3bcf5857436f312"},"replicates":{"hash":"0f38624d4ddb93af78583e9b995c0dfea461ae2555a993137a678569f4fc293f","url":"\/api\/v1\/measurements\/0f38624d4ddb93af78583e9b995c0dfea461ae2555a993137a678569f4fc293f"},"replications":[],"replicate":null}