{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FCSM7K5X6V6DSOLD3OKBOGUZ56","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":"b1a65d0f0dafea96b7ac6a82ce72e202db0c14bcd1b9cf79bb4d8ab8492bf8a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-15T17:59:59Z","title_canon_sha256":"012151c292f21459fa2130237f6cd2c788448cd92f1394e1f466f4cc05106876"},"schema_version":"1.0","source":{"id":"1904.07224","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.07224","created_at":"2026-07-05T04:53:23Z"},{"alias_kind":"arxiv_version","alias_value":"1904.07224v5","created_at":"2026-07-05T04:53:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.07224","created_at":"2026-07-05T04:53:23Z"},{"alias_kind":"pith_short_12","alias_value":"FCSM7K5X6V6D","created_at":"2026-07-05T04:53:23Z"},{"alias_kind":"pith_short_16","alias_value":"FCSM7K5X6V6DSOLD","created_at":"2026-07-05T04:53:23Z"},{"alias_kind":"pith_short_8","alias_value":"FCSM7K5X","created_at":"2026-07-05T04:53:23Z"}],"graph_snapshots":[{"event_id":"sha256:8509f7981eafd634db5871725c671732a43f4b4801082cb70864219ae7379516","target":"graph","created_at":"2026-07-05T04:53:23Z","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/1904.07224/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The earliest confirmed interstellar object, `Oumuamua, was discovered in the Solar System by Pan-STARRS in 2017, allowing for a calibration of the abundance of interstellar objects of its size $\\sim 100\\;$ m. This was followed by the discovery of Borisov, which allowed for a similar calibration of its size $\\sim 0.4 - 1 \\mathrm{\\; km}$. One would expect a much higher abundance of significantly smaller interstellar objects, with some of them colliding with Earth frequently enough to be noticeable. Based on the CNEOS catalog of bolide events, we identify the $\\sim 0.45$m meteor detected at 2014-","authors_text":"Abraham Loeb, Amir Siraj","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-15T17:59:59Z","title":"The 2019 Discovery of a Meteor of Interstellar Origin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.07224","kind":"arxiv","version":5},"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:b80a34ab108ee7c3d888e68fb27d77d718c7fa0ff9e5ffe294bce99a980b36e6","target":"record","created_at":"2026-07-05T04:53:23Z","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":"b1a65d0f0dafea96b7ac6a82ce72e202db0c14bcd1b9cf79bb4d8ab8492bf8a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-15T17:59:59Z","title_canon_sha256":"012151c292f21459fa2130237f6cd2c788448cd92f1394e1f466f4cc05106876"},"schema_version":"1.0","source":{"id":"1904.07224","kind":"arxiv","version":5}},"canonical_sha256":"28a4cfabb7f57c393963db94171a99efa8fd966ba120c6b998d2db48dccaeebb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28a4cfabb7f57c393963db94171a99efa8fd966ba120c6b998d2db48dccaeebb","first_computed_at":"2026-07-05T04:53:23.310989Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:53:23.310989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wb9OFcf5IrF6tQ2B+ebafWlugT3t5Jc+KrddgupjIz17P6qWh4xICyNQrCikOkjJAp0sPlT2EGGWPIP+JwXxBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:53:23.311452Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.07224","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b80a34ab108ee7c3d888e68fb27d77d718c7fa0ff9e5ffe294bce99a980b36e6","sha256:8509f7981eafd634db5871725c671732a43f4b4801082cb70864219ae7379516"],"state_sha256":"03b20e1870a78a865b7f621216a805a2c3e5c78a0aa7c3eed7aa8fff6db5c724"}