{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:EJPR45R4J5P7XZAOSEANQPMRXQ","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":"e7da82f798556e755ac7566fb20edfe977a43170fb55c9b80acb45020bd3d067","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-04T07:43:12Z","title_canon_sha256":"91cb60be46c9a14732cccb8774009a5c11ef33a324a6dbd6783fe2c208b05106"},"schema_version":"1.0","source":{"id":"1506.01493","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.01493","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"arxiv_version","alias_value":"1506.01493v1","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.01493","created_at":"2026-05-18T01:35:47Z"},{"alias_kind":"pith_short_12","alias_value":"EJPR45R4J5P7","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"EJPR45R4J5P7XZAO","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"EJPR45R4","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:b844ca1fb074d698bd0f77da0a5baf028420c332f3a0d6844a6cfb23ece29920","target":"graph","created_at":"2026-05-18T01:35:47Z","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":"The long-term (over more than one decade) X-ray emission from two massive stellar systems known to be particle accelerators is investigated using XMM-Newton. Their X-ray properties are interpreted taking into account recent information about their multiplicity and orbital parameters. The two targets, HD168112 and HD167971 appear to be overluminous in X-rays, lending additional support to the idea that a significant contribution of the X-ray emission comes from colliding-wind regions. The variability of the X-ray flux from HD168112 is interpreted in terms of varying separation expected to follo","authors_text":"M. De Becker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-04T07:43:12Z","title":"Long-term XMM-Newton investigation of two particle-accelerating colliding-wind binaries in NGC6604: HD168112 and HD167971"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.01493","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":"sha256:2718e61da6b707f6752a9cf669848759a8bba38b4c198588b84aa1352fe6af47","target":"record","created_at":"2026-05-18T01:35:47Z","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":"e7da82f798556e755ac7566fb20edfe977a43170fb55c9b80acb45020bd3d067","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-04T07:43:12Z","title_canon_sha256":"91cb60be46c9a14732cccb8774009a5c11ef33a324a6dbd6783fe2c208b05106"},"schema_version":"1.0","source":{"id":"1506.01493","kind":"arxiv","version":1}},"canonical_sha256":"225f1e763c4f5ffbe40e9100d83d91bc0615a75747d9e7153fe401cb0d2a4ef7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"225f1e763c4f5ffbe40e9100d83d91bc0615a75747d9e7153fe401cb0d2a4ef7","first_computed_at":"2026-05-18T01:35:47.323971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:47.323971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mx4dO1rpYtArPzONdlcYLZ4bHqifyrQo1a2pvd4WNyyIPU7j+6bCMD0N7aVGiCGzOSErzKV2OhX9thEl/CmTCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:47.324517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.01493","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2718e61da6b707f6752a9cf669848759a8bba38b4c198588b84aa1352fe6af47","sha256:b844ca1fb074d698bd0f77da0a5baf028420c332f3a0d6844a6cfb23ece29920"],"state_sha256":"1e6d21e1cc8a9f7e8d71705f75d7668824fa3a2168259102d8db8b4808a0bf59"}