{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:MTGJNB6TM4WSFBEWSSTXSFFAYP","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":"584902c6205b64d5c9c5dcf32de4f0dfbd9c6543b610e9a0cd046dd542c9601c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-19T13:25:24Z","title_canon_sha256":"6c083d0d2601f06f34054d838735d2237ba25c01ec6fdcf11b64bc341838aac1"},"schema_version":"1.0","source":{"id":"2307.10330","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.10330","created_at":"2026-07-05T08:29:16Z"},{"alias_kind":"arxiv_version","alias_value":"2307.10330v2","created_at":"2026-07-05T08:29:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.10330","created_at":"2026-07-05T08:29:16Z"},{"alias_kind":"pith_short_12","alias_value":"MTGJNB6TM4WS","created_at":"2026-07-05T08:29:16Z"},{"alias_kind":"pith_short_16","alias_value":"MTGJNB6TM4WSFBEW","created_at":"2026-07-05T08:29:16Z"},{"alias_kind":"pith_short_8","alias_value":"MTGJNB6T","created_at":"2026-07-05T08:29:16Z"}],"graph_snapshots":[{"event_id":"sha256:cd674fb9df202355e38bd62f1313aeae4e65a9147c4325302fae85cc84808ab9","target":"graph","created_at":"2026-07-05T08:29:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2307.10330/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In galactic nuclei, stellar densities are so high that stars can physically collide with each other. In this work we focus on the collision of red giants and in particular on the formation of non-thermal processes through collisions and their properties. We analytically address these points by evaluating head-on collisions but also take into account scenarios with a deviation from the radial orbit, which we treat in a perturbative fashion. The collisions produce internal shocks with supersonic Mach numbers. Almost immediately, jet-like structures with important Lorentz factors form. The debris","authors_text":"Pau Amaro Seoane","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-19T13:25:24Z","title":"Colliding red giants in galactic nuclei: Shocks, jets, impact on the ISM, X- and gamma-rays, neutrinos, fusion ignition and afterglow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.10330","kind":"arxiv","version":2},"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":"sha256:257d8e378153a60e91f713a5e589b2b67695b19930faef487db473f152bb7980","target":"record","created_at":"2026-07-05T08:29:16Z","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":"584902c6205b64d5c9c5dcf32de4f0dfbd9c6543b610e9a0cd046dd542c9601c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-07-19T13:25:24Z","title_canon_sha256":"6c083d0d2601f06f34054d838735d2237ba25c01ec6fdcf11b64bc341838aac1"},"schema_version":"1.0","source":{"id":"2307.10330","kind":"arxiv","version":2}},"canonical_sha256":"64cc9687d3672d22849694a77914a0c3c0c329c73b4c98573623ba84ba151dd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64cc9687d3672d22849694a77914a0c3c0c329c73b4c98573623ba84ba151dd6","first_computed_at":"2026-07-05T08:29:16.502791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:29:16.502791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UsYVcr/vNYtNqw50YKE5TX0O+XZGHs4eGc2xHPp8VF/6bq/XRl5SWTl1C6u5Tt/tfyj50eeQ3gMaN0TWEL6OCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:29:16.503299Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.10330","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:257d8e378153a60e91f713a5e589b2b67695b19930faef487db473f152bb7980","sha256:cd674fb9df202355e38bd62f1313aeae4e65a9147c4325302fae85cc84808ab9"],"state_sha256":"8c73a21d08b5544e484b108252e8267ddf0c7dac7ebe90e9585fbd606af840ab"}