{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:NM6IOTHSKTUZFUGZKDLZ4D5SYA","short_pith_number":"pith:NM6IOTHS","schema_version":"1.0","canonical_sha256":"6b3c874cf254e992d0d950d79e0fb2c02a67707d0b618b9b2066516c561f3484","source":{"kind":"arxiv","id":"0909.4022","version":1},"attestation_state":"computed","paper":{"title":"Positron transport in the interstellar medium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Marcowith, K. Ferri\\`ere, P. Jean, W. Gillard","submitted_at":"2009-09-22T15:30:54Z","abstract_excerpt":"We seek to understand the propagation mechanisms of positrons in the interstellar medium (ISM). This understanding is a key to determine whether the spatial distribution of the annihilation emission observed in our Galaxy reflects the spatial distribution of positron sources and, therefore, makes it possible to place constraints on the origin of positrons. We review the different processes that are likely to affect the transport of positrons in the ISM. These processes fall into three broad categories: scattering off magnetohydrodynamic waves, collisions with particles of the interstellar gas "},"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":"0909.4022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-22T15:30:54Z","cross_cats_sorted":[],"title_canon_sha256":"ec2ef765a1768737991e0078b03d61231a28964d814b7d5f8f1d50af405d8dac","abstract_canon_sha256":"36858482cf0d41f9303afa438dcedefe9835ae333afb5b6092fd4a51af985af0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:45.310271Z","signature_b64":"fwJEXfxgBB1zG6rXoNI+UBBBjtZ/mHs7KghH6R6PKHvGTLMRHY08edmtUc3ebyfbzrcWr9/hT5awg13he5GeBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b3c874cf254e992d0d950d79e0fb2c02a67707d0b618b9b2066516c561f3484","last_reissued_at":"2026-05-18T02:11:45.309625Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:45.309625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Positron transport in the interstellar medium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Marcowith, K. Ferri\\`ere, P. Jean, W. Gillard","submitted_at":"2009-09-22T15:30:54Z","abstract_excerpt":"We seek to understand the propagation mechanisms of positrons in the interstellar medium (ISM). This understanding is a key to determine whether the spatial distribution of the annihilation emission observed in our Galaxy reflects the spatial distribution of positron sources and, therefore, makes it possible to place constraints on the origin of positrons. We review the different processes that are likely to affect the transport of positrons in the ISM. These processes fall into three broad categories: scattering off magnetohydrodynamic waves, collisions with particles of the interstellar gas "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4022","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"0909.4022","created_at":"2026-05-18T02:11:45.309717+00:00"},{"alias_kind":"arxiv_version","alias_value":"0909.4022v1","created_at":"2026-05-18T02:11:45.309717+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4022","created_at":"2026-05-18T02:11:45.309717+00:00"},{"alias_kind":"pith_short_12","alias_value":"NM6IOTHSKTUZ","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"NM6IOTHSKTUZFUGZ","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"NM6IOTHS","created_at":"2026-05-18T12:26:00.592388+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/NM6IOTHSKTUZFUGZKDLZ4D5SYA","json":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA.json","graph_json":"https://pith.science/api/pith-number/NM6IOTHSKTUZFUGZKDLZ4D5SYA/graph.json","events_json":"https://pith.science/api/pith-number/NM6IOTHSKTUZFUGZKDLZ4D5SYA/events.json","paper":"https://pith.science/paper/NM6IOTHS"},"agent_actions":{"view_html":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA","download_json":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA.json","view_paper":"https://pith.science/paper/NM6IOTHS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0909.4022&json=true","fetch_graph":"https://pith.science/api/pith-number/NM6IOTHSKTUZFUGZKDLZ4D5SYA/graph.json","fetch_events":"https://pith.science/api/pith-number/NM6IOTHSKTUZFUGZKDLZ4D5SYA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA/action/storage_attestation","attest_author":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA/action/author_attestation","sign_citation":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA/action/citation_signature","submit_replication":"https://pith.science/pith/NM6IOTHSKTUZFUGZKDLZ4D5SYA/action/replication_record"}},"created_at":"2026-05-18T02:11:45.309717+00:00","updated_at":"2026-05-18T02:11:45.309717+00:00"}