{"report_target":{"type":"measurement","id":"da925055-0b0b-4b42-95fc-c5df28d1187f"},"metric":"token_delta","formula_version":1,"value":1.875,"value_lo":0.90625,"value_hi":1.875,"value_uncensored":null,"floor_cells":null,"panel_models":["cl100k_base","o200k_base","p50k_base"],"panel_members":3,"panel_neff":3,"panel_neff_basis":"computed:tokenizer_lineage","panel_neff_declared":null,"panel_agreement":null,"resample_down":null,"yield_report":null,"calibration":null,"replication_comparison":{"rule":"point-and-strata-relative-v1","original_value":0.875,"replication_value":1.875,"absolute_difference":1,"tolerance":{"relative":0.1000000000000000055511151231257827021181583404541015625,"absolute_floor":0.0200000000000000004163336342344337026588618755340576171875,"effective":0.08750000000000000832667268468867405317723751068115234375},"roster_changed":false,"shared_members":[{"member":"cl100k_base","original_value":0.25,"replication_value":0.90625,"difference":0.65625,"absolute_difference":0.65625},{"member":"o200k_base","original_value":0.375,"replication_value":1.15625,"difference":0.78125,"absolute_difference":0.78125},{"member":"p50k_base","original_value":0.875,"replication_value":1.875,"difference":1,"absolute_difference":1}],"reproduced_ok":false,"member_diagnostics_effect":"diagnostic_only","aggregate_reproduced_ok":false,"strata":[{"id":"no-undo","weight":1,"share":0.5,"original_value":1,"replication_value":1,"absolute_difference":0,"tolerance":0.1000000000000000055511151231257827021181583404541015625,"reproduced_ok":true},{"id":"can-undo","weight":1,"share":0.5,"original_value":0.75,"replication_value":2.75,"absolute_difference":2,"tolerance":0.075000000000000011102230246251565404236316680908203125,"reproduced_ok":false}],"strata_effect":"required_all","commensurability":{"verdict":"point_fallback","rule_version":"0fa4ffa41d5ac6ff70ba64fd2f26e9ad8657fe1d6b2a2439bd4d20411195010f","keys":{"formula_version":{"original":1,"replication":1,"gates":false,"gate_rule":"formula_version_unequal"},"unit":{"original":"one complete action sentence with its reversibility tag or clause","replication":"one complete action sentence with its reversibility tag or clause","gates":false,"gate_rule":"unit_mismatch"},"interval_kind":{"original":"member_span","replication":"member_span","declared_original":"member_span","declared_replication":"member_span","derived":true,"gates":false,"gate_rule":"interval_kind_conflict"},"declared_kind_original":{"original":"member_span","replication":"member_span","gates":false,"gate_rule":"declared_kind_conflicts_derived_original"},"declared_kind_replication":{"original":"member_span","replication":"member_span","gates":false,"gate_rule":"declared_kind_conflicts_derived_replication"},"estimand_digest":{"original":"dadc7afe2c366dff9b8cf172bc7f6829003a75b529c48fcdfe0774bee680dac2","replication":"dadc7afe2c366dff9b8cf172bc7f6829003a75b529c48fcdfe0774bee680dac2","gates":false,"differs":false,"gate_rule":"estimand_digest_differs"}},"held_on":[],"non_operative_facts":[],"diagnostic_note":"keys.gate_rule names a check, not an observed failure. held_on lists the operative hold reasons; non_operative_facts records checks that do not decide a distinct-question verdict. Stored receipts and settlement rules are unchanged."},"comparison_identity":{"state":"matched","original":{"kind":"ainglish.token-comparison-identity.v2","item_count":32,"tokenizer_roster":["cl100k_base","o200k_base","p50k_base"],"comparator":"registered no-undo \/ can-undo(\u003Chow\u003E) trailing tag minus the shortest content-matched careful-English rendering (irreversibly \/ irrevocably; restorable from X \/ reversible via X) carrying the same action, path, window and loss; clausal \u0027this cannot be undone\u0027 renderings are out of scope by the pinned comparator genre","population":"32 fresh authored pairs: 16 no-undo and 16 can-undo(\u003Chow\u003E), balanced report\/instruction shapes and path-only\/windowed\/holder\/cost how-slots; not random natural prose","aggregation":"equal cell means per tokenizer then maximum tokenizer mean (least-favourable) across cl100k_base, o200k_base and p50k_base; retain the no-undo and can-undo strata separately","unit_span":"one complete action sentence with its reversibility tag or clause"},"replication":{"kind":"ainglish.token-comparison-identity.v2","item_count":32,"tokenizer_roster":["cl100k_base","o200k_base","p50k_base"],"comparator":"registered no-undo \/ can-undo(\u003Chow\u003E) trailing tag minus the shortest content-matched careful-English rendering (irreversibly \/ irrevocably; restorable from X \/ reversible via X) carrying the same action, path, window and loss; clausal \u0027this cannot be undone\u0027 renderings are out of scope by the pinned comparator genre","population":"32 fresh authored pairs: 16 no-undo and 16 can-undo(\u003Chow\u003E), balanced report\/instruction shapes and path-only\/windowed\/holder\/cost how-slots; not random natural prose","aggregation":"equal cell means per tokenizer then maximum tokenizer mean (least-favourable) across cl100k_base, o200k_base and p50k_base; retain the no-undo and can-undo strata separately","unit_span":"one complete action sentence with its reversibility tag or clause"}},"unpinned":false,"rule_applied":"point-and-strata-relative-v1","unpinned_rule":"inert","governance_effect":"eligible_disagreement","settlement_withheld":false},"study_context":{"report_only":true,"study_purpose":null,"study_scope":null,"boundary":"Declared by the experiment\u2019s author. This label neither certifies claim coverage nor changes validity, settlement or readiness. A diagnostic can still expose genuine harm.","status":"undeclared","label":"Test purpose not explicitly declared"},"derivation_verified":true,"token_derivation":{"kind":"ainglish.server-token-derivation.v1","verified":true,"manifest_hash":"2341c2356ed339baf8dba28d4cb87d3ecb6d7068ad2e5e2cb7cf74b6b160691a","verified_at":"2026-09-10T15:02:59+00:00","implementation":"yethee\/tiktoken:1.1.1:NativeEncoder","pcre_version":"10.40 2022-04-14","encodings":{"cl100k_base":{"vocab_sha256":"223921b76ee99bde995b7ff738513eef100fb51d18c93597a113bcffe865b2a7","pattern_sha256":"d98f9631be1e9607a9848c26c1f9eac1aa9fc21ac6ba82a2fc0741af9780a48f"},"o200k_base":{"vocab_sha256":"446a9538cb6c348e3516120d7c08b09f57c36495e2acfffe59a5bf8b0cfb1a2d","pattern_sha256":"0d147c72e687a7c02b132ecb993d0ba5dc0a4011030e6d17655fdb532c16f4ff"},"p50k_base":{"vocab_sha256":"94b5ca7dff4d00767bc256fdd1b27e5b17361d7b8a5f968547f9f23eb70d2069","pattern_sha256":"eeb55ba74cc544ae7067587b680d16521d9891de9e94c7ba9412c0e0e93b1c36"}},"pair_count":32,"token_delta_sums":{"cl100k_base":29,"o200k_base":37,"p50k_base":60},"per_member":{"cl100k_base":0.90625,"o200k_base":1.15625,"p50k_base":1.875},"headline_model":"p50k_base","value":1.875,"strata":{"cl100k_base":{"no-undo":0.5,"can-undo":1.3125},"o200k_base":{"no-undo":1,"can-undo":1.3125},"p50k_base":{"no-undo":1,"can-undo":2.75}},"comparison_tolerance":9.9999999999999997988664762925561536725284350612952266601496376097202301025390625e-13,"scope":"Recounted submitted text and arithmetic only; not comparator adequacy, independent replication, comprehension, or future-trained efficiency."},"tokenizer_provenance":{"library":"tiktoken","version":"0.14.0"},"input_disjointness":1,"arms":null,"resolution_bound":"not_applicable","accuracy_resolution":null,"interval_provenance":null,"per_member":[{"model":"cl100k_base","value":0.90625},{"model":"o200k_base","value":1.15625},{"model":"p50k_base","value":1.875}],"stratum_results":[{"id":"no-undo","weight":1,"share":0.5,"value":1,"value_lo":null,"value_hi":null,"arms":null,"resolution_bound":"not_applicable"},{"id":"can-undo","weight":1,"share":0.5,"value":2.75,"value_lo":null,"value_hi":null,"arms":null,"resolution_bound":"not_applicable"}],"stratum_diagnostics":{"rule":"diagnostic-only-v1","lifecycle_effect":"none","cell_count":2,"adverse_cell_count":2,"multiplicity_adjusted":false,"adverse_cells":[{"id":"no-undo","value":1,"value_lo":null,"value_hi":null,"basis":"uncorrected_point"},{"id":"can-undo","value":2.75,"value_lo":null,"value_hi":null,"basis":"uncorrected_point"}],"interpretation":"Every cell remains load-bearing for reproduction. Adverse cells are published for voters; they do not mechanically reject the aggregate result."},"divergence":{"declared":true,"median":1.15625,"tolerance":0.1156250000000000055511151231257827021181583404541015625,"diverged":[{"model":"cl100k_base","value":0.90625,"delta_from_median":-0.25},{"model":"p50k_base","value":1.875,"delta_from_median":0.71875}]},"is_adversarial":false,"manifest_hash":"2341c2356ed339baf8dba28d4cb87d3ecb6d7068ad2e5e2cb7cf74b6b160691a","attempt_id":"da925055-0b0b-4b42-95fc-c5df28d1187f","attempt":{"attempt_id":"da925055-0b0b-4b42-95fc-c5df28d1187f","report_target":{"type":"attempt","id":"da925055-0b0b-4b42-95fc-c5df28d1187f"},"state":"completed","pin":{"proposal_revision":"action-no-undo-action-can-undo-how-4","manifest_commitment":"2341c2356ed339baf8dba28d4cb87d3ecb6d7068ad2e5e2cb7cf74b6b160691a","estimand":"token_delta over one complete action sentence with its reversibility tag or clause: registered no-undo \/ can-undo(\u003Chow\u003E) trailing tag minus the shortest content-matched careful-English rendering (irreversibly \/ irrevocably; 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restorable from X \/ reversible via X) carrying the same action, path, window and loss; clausal \u0027this cannot be undone\u0027 renderings are out of scope by the pinned comparator genre","population":"32 fresh authored pairs: 16 no-undo and 16 can-undo(\u003Chow\u003E), balanced report\/instruction shapes and path-only\/windowed\/holder\/cost how-slots; not random natural prose","aggregation":{"reducer":"least_favourable","rule":"equal cell means per tokenizer then maximum tokenizer mean (least-favourable) across cl100k_base, o200k_base and p50k_base; retain the no-undo and can-undo strata separately"},"governance_effect":"report_only"},"test_set":[{"stratum":"no-undo","english":"The amber fixture was sealed irreversibly.","ainglish":"The amber fixture was sealed, no-undo."},{"stratum":"no-undo","english":"Allocate the final raffle ticket irrevocably.","ainglish":"Allocate the final raffle ticket, no-undo."},{"stratum":"no-undo","english":"The sealed ballot was opened irreversibly.","ainglish":"The sealed ballot was opened, no-undo."},{"stratum":"no-undo","english":"Submit the binding tender irrevocably.","ainglish":"Submit the binding tender, no-undo."},{"stratum":"no-undo","english":"The beacon nonce was spent irreversibly.","ainglish":"The beacon nonce was spent, no-undo."},{"stratum":"no-undo","english":"Disclose the puzzle solution irrevocably.","ainglish":"Disclose the puzzle solution, no-undo."},{"stratum":"no-undo","english":"The spare fuses were melted irreversibly.","ainglish":"The spare fuses were melted, no-undo."},{"stratum":"no-undo","english":"Issue the final arbitration award irrevocably.","ainglish":"Issue the final arbitration award, no-undo."},{"stratum":"no-undo","english":"The witness sample was dissolved irreversibly.","ainglish":"The witness sample was dissolved, no-undo."},{"stratum":"no-undo","english":"Redeem the ceramic voucher irrevocably.","ainglish":"Redeem the ceramic voucher, no-undo."},{"stratum":"no-undo","english":"The last timing pulse was emitted irreversibly.","ainglish":"The last timing pulse was emitted, no-undo."},{"stratum":"no-undo","english":"Transfer the numbered bond irrevocably.","ainglish":"Transfer the numbered bond, no-undo."},{"stratum":"no-undo","english":"The courier pouch was unsealed irreversibly.","ainglish":"The courier pouch was unsealed, no-undo."},{"stratum":"no-undo","english":"Announce the embargoed result irrevocably.","ainglish":"Announce the embargoed result, no-undo."},{"stratum":"no-undo","english":"The final challenge was answered irreversibly.","ainglish":"The final challenge was answered, no-undo."},{"stratum":"no-undo","english":"Cast the numbered ceramic tile irrevocably.","ainglish":"Cast the numbered ceramic tile, no-undo."},{"stratum":"can-undo","english":"The orange row was renamed; reversible via rename journal.","ainglish":"The orange row was renamed, can-undo(rename journal)."},{"stratum":"can-undo","english":"Lower the mixer gain; reversible via gain preset.","ainglish":"Lower the mixer gain, can-undo(gain preset)."},{"stratum":"can-undo","english":"The diagram layer was hidden; reversible via layer switch.","ainglish":"The diagram layer was hidden, can-undo(layer switch)."},{"stratum":"can-undo","english":"Reorder the index cards; reversible via order record.","ainglish":"Reorder the index cards, can-undo(order record)."},{"stratum":"can-undo","english":"The atlas palette was changed; reversible via palette checkpoint within 8h.","ainglish":"The atlas palette was changed, can-undo(palette checkpoint; 8h)."},{"stratum":"can-undo","english":"Hide the gallery panel; reversible via visibility toggle within 5d.","ainglish":"Hide the gallery panel, can-undo(visibility toggle; 5d)."},{"stratum":"can-undo","english":"The rover heading was adjusted; reversible via heading checkpoint within 20m.","ainglish":"The rover heading was adjusted, can-undo(heading checkpoint; 20m)."},{"stratum":"can-undo","english":"Move the copper slider; reversible via position log within 40m.","ainglish":"Move the copper slider, can-undo(position log; 40m)."},{"stratum":"can-undo","english":"The sensor profile was exchanged; reversible via profile archive by technician only.","ainglish":"The sensor profile was exchanged, can-undo(profile archive; technician-only)."},{"stratum":"can-undo","english":"Rename the marble workspace; reversible via name ledger by owner only.","ainglish":"Rename the marble workspace, can-undo(name ledger; owner-only)."},{"stratum":"can-undo","english":"The piano preset was replaced; reversible via preset backup by performer only.","ainglish":"The piano preset was replaced, can-undo(preset backup; performer-only)."},{"stratum":"can-undo","english":"Change the classroom layout; reversible via layout record by caretaker only.","ainglish":"Change the classroom layout, can-undo(layout record; caretaker-only)."},{"stratum":"can-undo","english":"The brass dial was recalibrated; reversible via calibration journal by maintainer only within 3h.","ainglish":"The brass dial was recalibrated, can-undo(calibration journal; maintainer-only; 3h)."},{"stratum":"can-undo","english":"Move the violet partition; reversible via partition snapshot by custodian only within 9d.","ainglish":"Move the violet partition, can-undo(partition snapshot; custodian-only; 9d)."},{"stratum":"can-undo","english":"The lantern offset was changed; reversible via offset restore; cost 6 credits.","ainglish":"The lantern offset was changed, can-undo(offset restore; 6 credits)."},{"stratum":"can-undo","english":"Swap the ribbon layout; reversible via layout restore by designer only within 2d; cost 7 credits.","ainglish":"Swap the ribbon layout, can-undo(layout restore; designer-only; 2d; 7 credits)."}],"replicates_hash":"6a5e62a8e0a56127c91089f68451d525eed5957e067e91a58319919735a6c35c","items_sha256":"b17f7441d510894ef081928294249bc238c380f88ee079c52042e016531ba0f4","comparison_identity":{"kind":"ainglish.token-comparison-identity.v2","item_count":32,"tokenizer_roster":["cl100k_base","o200k_base","p50k_base"],"comparator":"registered no-undo \/ can-undo(\u003Chow\u003E) trailing tag minus the shortest content-matched careful-English rendering (irreversibly \/ irrevocably; 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