{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:J7UWH7LTIM7Q2AVYVACX2NA4LU","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":"9acfcce45057a22fd209c20bd26c700e07969c443ea6bc547bedd0dee495d55d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-09-10T17:21:09Z","title_canon_sha256":"0d5ead9ab205f194d9e428c1393c6a3c776d2982106ce1769a174fa6184fa176"},"schema_version":"1.0","source":{"id":"2509.08792","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.08792","created_at":"2026-07-05T12:08:36Z"},{"alias_kind":"arxiv_version","alias_value":"2509.08792v1","created_at":"2026-07-05T12:08:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.08792","created_at":"2026-07-05T12:08:36Z"},{"alias_kind":"pith_short_12","alias_value":"J7UWH7LTIM7Q","created_at":"2026-07-05T12:08:36Z"},{"alias_kind":"pith_short_16","alias_value":"J7UWH7LTIM7Q2AVY","created_at":"2026-07-05T12:08:36Z"},{"alias_kind":"pith_short_8","alias_value":"J7UWH7LT","created_at":"2026-07-05T12:08:36Z"}],"graph_snapshots":[{"event_id":"sha256:513c50b168e932b628fed7057542a0efa25358fff99d8eb475d6d72d90982ea5","target":"graph","created_at":"2026-07-05T12:08:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2509.08792/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on the prediscovery observations and constraints of the new interstellar comet 3I/2025 N1 (ATLAS), made by the Zwicky Transient Facility (ZTF), for the inbound leg of the comet out to a heliocentric distance of $r_\\mathrm{h}=17$ au, or approximately a year before its discovery. We find that 3I/ATLAS has been active inward of a heliocentric distance of at least $r_\\mathrm{h}=6.5$ au. The comet followed a brightening rate of $\\propto r_\\mathrm{h}^{-3.8}$, which is significantly steeper than the only other known interstellar comet 2I/Borisov, and is more consistent with dynamically old ","authors_text":"Andrew Drake, Eric C. Bellm, George Helou, Henry H. Hsieh, Michael S. P. Kelley, Quanzhi Ye, Reed Riddle, Richard Dekany, Shrinivas R. Kulkarni, Steven L. Groom, Thomas A. Prince, Tracy X. Chen","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-09-10T17:21:09Z","title":"Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.08792","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:fc05c418eae3f7c084c09ba06d314a619163ee70bb3138cc340e56abd5405db7","target":"record","created_at":"2026-07-05T12:08:36Z","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":"9acfcce45057a22fd209c20bd26c700e07969c443ea6bc547bedd0dee495d55d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-09-10T17:21:09Z","title_canon_sha256":"0d5ead9ab205f194d9e428c1393c6a3c776d2982106ce1769a174fa6184fa176"},"schema_version":"1.0","source":{"id":"2509.08792","kind":"arxiv","version":1}},"canonical_sha256":"4fe963fd73433f0d02b8a8057d341c5d2ded85b0733a89e4a4fa5db3d5bc1fb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fe963fd73433f0d02b8a8057d341c5d2ded85b0733a89e4a4fa5db3d5bc1fb2","first_computed_at":"2026-07-05T12:08:36.389455Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:08:36.389455Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hR6OsuaTCocTRGTftGRJr3pmRwCjhYRyNMbUY8Urr/DS1x+k+LrhfobnWuwWQ+W8ZzHvvOiWY0ZXELBrQmuaAA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:08:36.389931Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.08792","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc05c418eae3f7c084c09ba06d314a619163ee70bb3138cc340e56abd5405db7","sha256:513c50b168e932b628fed7057542a0efa25358fff99d8eb475d6d72d90982ea5"],"state_sha256":"88703eba5c16195d38ce3476a9b9e03ebf1b18a6acc06d9c4e55120669a4cbdd"}