{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:3IAB27TGNQUH5LDT3QBTFZVZYF","short_pith_number":"pith:3IAB27TG","schema_version":"1.0","canonical_sha256":"da001d7e666c287eac73dc0332e6b9c143da78084ebd13927925e06ab0c07236","source":{"kind":"arxiv","id":"2604.25542","version":2},"attestation_state":"computed","paper":{"title":"A Possible Advanced Positron Signal in AMS-02 Measurements","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"A time-symmetric transport hypothesis models positrons as an admixture of retarded and advanced components to explain their distinct spectrum from electrons in AMS-02 data.","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Yi Yang","submitted_at":"2026-04-28T12:08:29Z","abstract_excerpt":"AMS-02 measurements show a striking separation between the characteristic energy scales of cosmic-ray electrons and positrons: the electron spectrum peaks near the ordinary retarded cooling scale, while the positron spectrum exhibits a high-energy structure at hundreds of GeV. I ask whether this hierarchy can be interpreted without introducing a dedicated additional positron source, dark matter component, or fine-tuned source population. Motivated by the Dirac/Feynman-Stueckelberg viewpoint, I formulate an effective transport response in which the positron sector contains a retarded branch and"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2604.25542","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"hep-ph","submitted_at":"2026-04-28T12:08:29Z","cross_cats_sorted":[],"title_canon_sha256":"47cbd184e644e4bc83a496a7341c3f25cf49bd0303f903f90e6346903ca15fdf","abstract_canon_sha256":"502e5bd41b7f59f3b36fca053e392d6c6190b58d7e9dd99a94deea47665ebda4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T01:03:54.175525Z","signature_b64":"jjEifP5viByI6s4hIU4LEXM/WiuoMhlMnjMarZLLqisNo+hdk56eLYZbpss6tiLZ8CV77PEoIt+TSy0soyeyDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da001d7e666c287eac73dc0332e6b9c143da78084ebd13927925e06ab0c07236","last_reissued_at":"2026-06-01T01:03:54.174294Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T01:03:54.174294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Possible Advanced Positron Signal in AMS-02 Measurements","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"A time-symmetric transport hypothesis models positrons as an admixture of retarded and advanced components to explain their distinct spectrum from electrons in AMS-02 data.","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Yi Yang","submitted_at":"2026-04-28T12:08:29Z","abstract_excerpt":"AMS-02 measurements show a striking separation between the characteristic energy scales of cosmic-ray electrons and positrons: the electron spectrum peaks near the ordinary retarded cooling scale, while the positron spectrum exhibits a high-energy structure at hundreds of GeV. I ask whether this hierarchy can be interpreted without introducing a dedicated additional positron source, dark matter component, or fine-tuned source population. Motivated by the Dirac/Feynman-Stueckelberg viewpoint, I formulate an effective transport response in which the positron sector contains a retarded branch and"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We adopt a representative, order-of-magnitude benchmark, in which the advanced-associated component dominates the effective admixture but experiences a ten-fold reduction in effective radiative exposure, to dissect the underlying spectral components and verify the results against AMS-02 data.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The positron sector can be modeled as an effective admixture of retarded and advanced-associated components whose advanced branch experiences a reduced effective radiative exposure; this reduction is introduced as a postulated ingredient requiring deeper theoretical justification, while spatial diffusion and solar modulation are omitted entirely.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A time-symmetric transport hypothesis models positrons as an admixture of retarded and advanced components with ten-fold reduced radiative exposure to reproduce the separated energy scales in AMS-02 electron and positron spectra.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A time-symmetric transport hypothesis models positrons as an admixture of retarded and advanced components to explain their distinct spectrum from electrons in AMS-02 data.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"478f8a569c86c19a4ae8fffc770f56ef9b1f11db05af7712161eaaf846c84fd0"},"source":{"id":"2604.25542","kind":"arxiv","version":2},"verdict":{"id":"2dd57c4a-3fc8-4dee-9a43-8249c7b11481","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-07T16:05:02.902468Z","strongest_claim":"We adopt a representative, order-of-magnitude benchmark, in which the advanced-associated component dominates the effective admixture but experiences a ten-fold reduction in effective radiative exposure, to dissect the underlying spectral components and verify the results against AMS-02 data.","one_line_summary":"A time-symmetric transport hypothesis models positrons as an admixture of retarded and advanced components with ten-fold reduced radiative exposure to reproduce the separated energy scales in AMS-02 electron and positron spectra.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The positron sector can be modeled as an effective admixture of retarded and advanced-associated components whose advanced branch experiences a reduced effective radiative exposure; this reduction is introduced as a postulated ingredient requiring deeper theoretical justification, while spatial diffusion and solar modulation are omitted entirely.","pith_extraction_headline":"A time-symmetric transport hypothesis models positrons as an admixture of retarded and advanced components to explain their distinct spectrum from electrons in AMS-02 data."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.25542/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-21T04:38:37.323005Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T21:04:50.873388Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"82ff6eeda990a186538ba24876e6956c0de9e45233f4175325ba38e3af23fb5c"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2604.25542","created_at":"2026-06-01T01:03:54.174488+00:00"},{"alias_kind":"arxiv_version","alias_value":"2604.25542v2","created_at":"2026-06-01T01:03:54.174488+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.25542","created_at":"2026-06-01T01:03:54.174488+00:00"},{"alias_kind":"pith_short_12","alias_value":"3IAB27TGNQUH","created_at":"2026-06-01T01:03:54.174488+00:00"},{"alias_kind":"pith_short_16","alias_value":"3IAB27TGNQUH5LDT","created_at":"2026-06-01T01:03:54.174488+00:00"},{"alias_kind":"pith_short_8","alias_value":"3IAB27TG","created_at":"2026-06-01T01:03:54.174488+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF","json":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF.json","graph_json":"https://pith.science/api/pith-number/3IAB27TGNQUH5LDT3QBTFZVZYF/graph.json","events_json":"https://pith.science/api/pith-number/3IAB27TGNQUH5LDT3QBTFZVZYF/events.json","paper":"https://pith.science/paper/3IAB27TG"},"agent_actions":{"view_html":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF","download_json":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF.json","view_paper":"https://pith.science/paper/3IAB27TG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2604.25542&json=true","fetch_graph":"https://pith.science/api/pith-number/3IAB27TGNQUH5LDT3QBTFZVZYF/graph.json","fetch_events":"https://pith.science/api/pith-number/3IAB27TGNQUH5LDT3QBTFZVZYF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF/action/storage_attestation","attest_author":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF/action/author_attestation","sign_citation":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF/action/citation_signature","submit_replication":"https://pith.science/pith/3IAB27TGNQUH5LDT3QBTFZVZYF/action/replication_record"}},"created_at":"2026-06-01T01:03:54.174488+00:00","updated_at":"2026-06-01T01:03:54.174488+00:00"}