{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QNOJ7QZM3KFBQSW2TPBPSYMYFC","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":"c0ae1fcd62754984c1bc9d834d1647c630b37e770c2d0e58a44dd9c86036a0a9","cross_cats_sorted":["astro-ph.IM","physics.space-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-11-23T23:40:07Z","title_canon_sha256":"5666756d1e0bbd7f103d6c57ce2132ec135364118a9379e72128db436bbeecae"},"schema_version":"1.0","source":{"id":"2111.12196","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.12196","created_at":"2026-07-05T05:27:46Z"},{"alias_kind":"arxiv_version","alias_value":"2111.12196v2","created_at":"2026-07-05T05:27:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.12196","created_at":"2026-07-05T05:27:46Z"},{"alias_kind":"pith_short_12","alias_value":"QNOJ7QZM3KFB","created_at":"2026-07-05T05:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"QNOJ7QZM3KFBQSW2","created_at":"2026-07-05T05:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"QNOJ7QZM","created_at":"2026-07-05T05:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:fbd23bc342fd8cd0fc514b23f61dc3fec5e2527ee79f777cd547db95fc54d9ca","target":"graph","created_at":"2026-07-05T05:27:46Z","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/2111.12196/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The development of large constellations of satellites (i.e., so-called megaconstellations or satcons) is poised to increase the number of LEO satellites by more than an order of magnitude in the coming decades. Such a rapid growth of satellite numbers makes the consequences of major fragmentation events ever more problematic. In this study, we investigate the collisional risk to on-orbit infrastructure from kinetic anti-satellite (ASAT) weapon tests, using the 2019 Indian test as a model. We find that the probability of one or more collisions occurring over the lifetime of ASAT fragments incre","authors_text":"Aaron C. Boley, Sarah Thiele","cross_cats":["astro-ph.IM","physics.space-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-11-23T23:40:07Z","title":"Investigating the risks of debris-generating ASAT tests in the presence of megaconstellations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.12196","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:c5eda74625c69b2ac68d42735f2199fde90b026fe742363f865b11fedc36a1e4","target":"record","created_at":"2026-07-05T05:27:46Z","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":"c0ae1fcd62754984c1bc9d834d1647c630b37e770c2d0e58a44dd9c86036a0a9","cross_cats_sorted":["astro-ph.IM","physics.space-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-11-23T23:40:07Z","title_canon_sha256":"5666756d1e0bbd7f103d6c57ce2132ec135364118a9379e72128db436bbeecae"},"schema_version":"1.0","source":{"id":"2111.12196","kind":"arxiv","version":2}},"canonical_sha256":"835c9fc32cda8a184ada9bc2f96198289fced7019b3a50babb2d951841dee778","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"835c9fc32cda8a184ada9bc2f96198289fced7019b3a50babb2d951841dee778","first_computed_at":"2026-07-05T05:27:46.715813Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:27:46.715813Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xEfbhaCwiJdxOYBdcSXuKKO/Y+AyJZb5Oe0xEpymYdoBDDPADMD3O5gCDQ9NyRtF9Nxl9mWjxoarYxSovjcHBg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:27:46.716323Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.12196","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5eda74625c69b2ac68d42735f2199fde90b026fe742363f865b11fedc36a1e4","sha256:fbd23bc342fd8cd0fc514b23f61dc3fec5e2527ee79f777cd547db95fc54d9ca"],"state_sha256":"964d9ae679ce13ebf23dc5177fc8edef9f2938b589596e11f09925f4e7e2de38"}