{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:JTOSZOH44Q4EY6AX4Q3P5BQ3ER","short_pith_number":"pith:JTOSZOH4","canonical_record":{"source":{"id":"0909.5587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T12:00:58Z","cross_cats_sorted":[],"title_canon_sha256":"9dfaaeb0711b77fd0ec8bc72b821026573007825bfc2038e246b9a13dfd13e17","abstract_canon_sha256":"b1ff93b44c06a03997d2ff7570e7b2f415dc49f188fce48c58544c68abbe71bb"},"schema_version":"1.0"},"canonical_sha256":"4cdd2cb8fce4384c7817e436fe861b24473144f358a04b8c4745bee10186b4cf","source":{"kind":"arxiv","id":"0909.5587","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.5587","created_at":"2026-05-18T00:46:43Z"},{"alias_kind":"arxiv_version","alias_value":"0909.5587v1","created_at":"2026-05-18T00:46:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.5587","created_at":"2026-05-18T00:46:43Z"},{"alias_kind":"pith_short_12","alias_value":"JTOSZOH44Q4E","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"JTOSZOH44Q4EY6AX","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"JTOSZOH4","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:JTOSZOH44Q4EY6AX4Q3P5BQ3ER","target":"record","payload":{"canonical_record":{"source":{"id":"0909.5587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T12:00:58Z","cross_cats_sorted":[],"title_canon_sha256":"9dfaaeb0711b77fd0ec8bc72b821026573007825bfc2038e246b9a13dfd13e17","abstract_canon_sha256":"b1ff93b44c06a03997d2ff7570e7b2f415dc49f188fce48c58544c68abbe71bb"},"schema_version":"1.0"},"canonical_sha256":"4cdd2cb8fce4384c7817e436fe861b24473144f358a04b8c4745bee10186b4cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:43.497303Z","signature_b64":"uf8cv8aKddt9b4uflKYqC55qXs0LiDmOUDxB8NzFLqRc+o06vQLadjEYMb/3aCif6PSOV2CvHqXyre2+/DIBAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4cdd2cb8fce4384c7817e436fe861b24473144f358a04b8c4745bee10186b4cf","last_reissued_at":"2026-05-18T00:46:43.496785Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:43.496785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.5587","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:46:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aq5lZUrqmilHj3jUmfLtvDfIRA23OFY4C+85tiSPZIo/deY+fKxNjojNJ+5zVtQuRu0TKTMqsHa6yvrQVCJ2CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:39:39.660428Z"},"content_sha256":"b2be1b5e9138f3b23f03c45b31b4097c0cc3f896eb07909b1e3d02e27e90f25e","schema_version":"1.0","event_id":"sha256:b2be1b5e9138f3b23f03c45b31b4097c0cc3f896eb07909b1e3d02e27e90f25e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:JTOSZOH44Q4EY6AX4Q3P5BQ3ER","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"One-dimensional pair cascade emission in gamma-ray binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Benoit Cerutti (LAOG), Gilles Henri (LAOG), Guillaume Dubus (LAOG)","submitted_at":"2009-09-30T12:00:58Z","abstract_excerpt":"In gamma-ray binaries such as LS 5039 a large number of electron-positron pairs are created by the annihilation of primary very high energy (VHE) gamma-rays with photons from the massive star. The radiation from these particles contributes to the total high energy gamma-ray flux and can initiate a cascade, decreasing the effective gamma-ray opacity in the system. The aim of this paper is to model the cascade emission and investigate if it can account for the VHE gamma-ray flux detected by HESS from LS 5039 at superior conjunction, where the primary gamma-rays are expected to be fully absorbed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.5587","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:46:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hyazB5amBHX6g+xTz6GZ5u1QnnAZeIZlSIFxVRdwIUb1QgnqmpQiVkeAQUnA7/7sLqtavHsJJmMH7Y3/yTSpAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:39:39.660775Z"},"content_sha256":"c2af3a9324c9596a659cdc6183bda5051efebb2b4bf2f5c082b2d2a03d875fbd","schema_version":"1.0","event_id":"sha256:c2af3a9324c9596a659cdc6183bda5051efebb2b4bf2f5c082b2d2a03d875fbd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER/bundle.json","state_url":"https://pith.science/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-03T12:39:39Z","links":{"resolver":"https://pith.science/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER","bundle":"https://pith.science/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER/bundle.json","state":"https://pith.science/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JTOSZOH44Q4EY6AX4Q3P5BQ3ER/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:JTOSZOH44Q4EY6AX4Q3P5BQ3ER","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b1ff93b44c06a03997d2ff7570e7b2f415dc49f188fce48c58544c68abbe71bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T12:00:58Z","title_canon_sha256":"9dfaaeb0711b77fd0ec8bc72b821026573007825bfc2038e246b9a13dfd13e17"},"schema_version":"1.0","source":{"id":"0909.5587","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.5587","created_at":"2026-05-18T00:46:43Z"},{"alias_kind":"arxiv_version","alias_value":"0909.5587v1","created_at":"2026-05-18T00:46:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.5587","created_at":"2026-05-18T00:46:43Z"},{"alias_kind":"pith_short_12","alias_value":"JTOSZOH44Q4E","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"JTOSZOH44Q4EY6AX","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"JTOSZOH4","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:c2af3a9324c9596a659cdc6183bda5051efebb2b4bf2f5c082b2d2a03d875fbd","target":"graph","created_at":"2026-05-18T00:46:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"In gamma-ray binaries such as LS 5039 a large number of electron-positron pairs are created by the annihilation of primary very high energy (VHE) gamma-rays with photons from the massive star. The radiation from these particles contributes to the total high energy gamma-ray flux and can initiate a cascade, decreasing the effective gamma-ray opacity in the system. The aim of this paper is to model the cascade emission and investigate if it can account for the VHE gamma-ray flux detected by HESS from LS 5039 at superior conjunction, where the primary gamma-rays are expected to be fully absorbed.","authors_text":"Benoit Cerutti (LAOG), Gilles Henri (LAOG), Guillaume Dubus (LAOG)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T12:00:58Z","title":"One-dimensional pair cascade emission in gamma-ray binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.5587","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b2be1b5e9138f3b23f03c45b31b4097c0cc3f896eb07909b1e3d02e27e90f25e","target":"record","created_at":"2026-05-18T00:46:43Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"b1ff93b44c06a03997d2ff7570e7b2f415dc49f188fce48c58544c68abbe71bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T12:00:58Z","title_canon_sha256":"9dfaaeb0711b77fd0ec8bc72b821026573007825bfc2038e246b9a13dfd13e17"},"schema_version":"1.0","source":{"id":"0909.5587","kind":"arxiv","version":1}},"canonical_sha256":"4cdd2cb8fce4384c7817e436fe861b24473144f358a04b8c4745bee10186b4cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4cdd2cb8fce4384c7817e436fe861b24473144f358a04b8c4745bee10186b4cf","first_computed_at":"2026-05-18T00:46:43.496785Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:43.496785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uf8cv8aKddt9b4uflKYqC55qXs0LiDmOUDxB8NzFLqRc+o06vQLadjEYMb/3aCif6PSOV2CvHqXyre2+/DIBAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:43.497303Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.5587","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2be1b5e9138f3b23f03c45b31b4097c0cc3f896eb07909b1e3d02e27e90f25e","sha256:c2af3a9324c9596a659cdc6183bda5051efebb2b4bf2f5c082b2d2a03d875fbd"],"state_sha256":"3a4a2f7311afb85e676852bf712251d3eee898451761cb7d8fc76749576744a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c0STFeV9isNFR6wrl48bagBq+VYROJBys3Cj9BO0jQp3OSd39fUvrN5vgKcoXTQhG20xg0/Rn7F10wwyaM+zDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T12:39:39.662949Z","bundle_sha256":"06acf47d54b890b186c45e61f14e645d8a78dd2b20d534312c2e7a854ba0856b"}}