{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:3LEAN3X3W5J7SN7FQZV33GKU6S","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":"519aa76b28d6e9597bb291440f93559a372e76c1cd90e8a8ca24403091055556","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-04-10T20:00:03Z","title_canon_sha256":"b78e1d8f4dcdceeb800c91d6ecf20b0bbedca6a28a32d6f6fc8e52afd3a847a8"},"schema_version":"1.0","source":{"id":"1304.3125","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.3125","created_at":"2026-05-18T01:50:40Z"},{"alias_kind":"arxiv_version","alias_value":"1304.3125v1","created_at":"2026-05-18T01:50:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.3125","created_at":"2026-05-18T01:50:40Z"},{"alias_kind":"pith_short_12","alias_value":"3LEAN3X3W5J7","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"3LEAN3X3W5J7SN7F","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"3LEAN3X3","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:589b1123ad375dde2a45c05fc2b721183610584b5638fbb3ad7c436570e4aba7","target":"graph","created_at":"2026-05-18T01:50:40Z","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":"Motivated by the reported dearth of debris discs around M stars, we use survival models to study the occurrence of planetesimal discs around them. These survival models describe a planetesimal disc with a small number of parameters, determine if it may survive a series of dynamical processes and compute the associated infrared excess. For the WISE satellite, we demonstrate that the dearth of debris discs around M stars may be attributed to the small semi-major axes generally probed if either: 1. the dust grains behave like blackbodies emitting at a peak wavelength coincident with the observed ","authors_text":"Kevin Heng, Matej Malik","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-04-10T20:00:03Z","title":"Debris discs around M stars: non-existence versus non-detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.3125","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":"sha256:614157cf8589e573799a6f8ee63a03d8e0372d58cd293196a0fdc40aabbd94ae","target":"record","created_at":"2026-05-18T01:50:40Z","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":"519aa76b28d6e9597bb291440f93559a372e76c1cd90e8a8ca24403091055556","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-04-10T20:00:03Z","title_canon_sha256":"b78e1d8f4dcdceeb800c91d6ecf20b0bbedca6a28a32d6f6fc8e52afd3a847a8"},"schema_version":"1.0","source":{"id":"1304.3125","kind":"arxiv","version":1}},"canonical_sha256":"dac806eefbb753f937e5866bbd9954f489891b35ef94d79952400c25bc9634fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dac806eefbb753f937e5866bbd9954f489891b35ef94d79952400c25bc9634fb","first_computed_at":"2026-05-18T01:50:40.195961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:40.195961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wYlttm/F3QuGTQWejfWmzzVJjNR4ni61KTbGJfYP4i22EISNBUVOywMAwa8IsVcevht2jzYt3wFs/eoM658mBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:40.196650Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.3125","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:614157cf8589e573799a6f8ee63a03d8e0372d58cd293196a0fdc40aabbd94ae","sha256:589b1123ad375dde2a45c05fc2b721183610584b5638fbb3ad7c436570e4aba7"],"state_sha256":"b8eedeaf6916683ecb15fe6750f0ccaf35c0cf9a0c04e5f4f034c240e032f3d8"}