{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:4BXR277CRHPTMZHS2NUZCJF6YY","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":"a59e7b9e25ee37b7412439e4c57bcdbd9041fe1fdbb3067a35a4a0adbe5cec0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-07T17:06:37Z","title_canon_sha256":"2559783e508d767bcc2747d1a80210de165a6a31cbc3fbdecd0f13ce96ed3d33"},"schema_version":"1.0","source":{"id":"1104.1382","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1382","created_at":"2026-05-18T02:02:36Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1382v1","created_at":"2026-05-18T02:02:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1382","created_at":"2026-05-18T02:02:36Z"},{"alias_kind":"pith_short_12","alias_value":"4BXR277CRHPT","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4BXR277CRHPTMZHS","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4BXR277C","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:bab7bbd78548cb3255e30bd9e0bdc17cbd659a0ba1a1fb2a6ae8ff3523445a5e","target":"graph","created_at":"2026-05-18T02:02:36Z","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 Keck Interferometer Nuller (KIN) was used to survey 25 nearby main sequence stars in the mid-infrared, in order to assess the prevalence of warm circumstellar (exozodiacal) dust around nearby solar-type stars. The KIN measures circumstellar emission by spatially blocking the star but transmitting the circumstellar flux in a region typically 0.1 - 4 AU from the star. We find one significant detection (eta Crv), two marginal detections (gamma Oph and alpha Aql), and 22 clear non-detections. Using a model of our own Solar System's zodiacal cloud, scaled to the luminosity of each target star, ","authors_text":"A. J. Booth, B. Mennesson, E. Serabyn, G. Bryden, J. Woillez, K. Stapelfeldt, M. Hrynevych, M. Kuchner, M. M. Colavita, R. K. Barry, R. Millan-Gabet, S. Ragland, W. A. Traub, W. C. Danchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-07T17:06:37Z","title":"Exo--Zodiacal Dust Levels for Nearby Main Sequence Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1382","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":"sha256:5b2744d0ecaed1692ee091f8ae26542eaea4e48deca6bd10fd45ff74aafe6056","target":"record","created_at":"2026-05-18T02:02:36Z","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":"a59e7b9e25ee37b7412439e4c57bcdbd9041fe1fdbb3067a35a4a0adbe5cec0b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-07T17:06:37Z","title_canon_sha256":"2559783e508d767bcc2747d1a80210de165a6a31cbc3fbdecd0f13ce96ed3d33"},"schema_version":"1.0","source":{"id":"1104.1382","kind":"arxiv","version":1}},"canonical_sha256":"e06f1d7fe289df3664f2d3699124bec600d3e8f36b7ad04e74b6a3485739ed09","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e06f1d7fe289df3664f2d3699124bec600d3e8f36b7ad04e74b6a3485739ed09","first_computed_at":"2026-05-18T02:02:36.643173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:36.643173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wV7N29sMLYdl2adxXByV2ck/7nzce2EzrEr9YW6N/kazsj+ww/7AdfcIXgmZ88Ln+EKZ5CzVLQuzObijYmEeAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:36.643792Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.1382","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b2744d0ecaed1692ee091f8ae26542eaea4e48deca6bd10fd45ff74aafe6056","sha256:bab7bbd78548cb3255e30bd9e0bdc17cbd659a0ba1a1fb2a6ae8ff3523445a5e"],"state_sha256":"8dabb8bd510b0f4f001de7d745627a40eee1b4cf5e35a102786b62f2254527f9"}