{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:P43VJZIXC5ZBARHRGCURPPUVYY","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":"f11dc15648c27ec6fed141c6958e977198891a9ff49850e90a69f3fc3e7b11f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-07T04:15:55Z","title_canon_sha256":"261183830d9cad9e2aef6c0e7e868ba8664107ede04042e6a91e61061beeda62"},"schema_version":"1.0","source":{"id":"1807.02610","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.02610","created_at":"2026-05-18T00:11:16Z"},{"alias_kind":"arxiv_version","alias_value":"1807.02610v1","created_at":"2026-05-18T00:11:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.02610","created_at":"2026-05-18T00:11:16Z"},{"alias_kind":"pith_short_12","alias_value":"P43VJZIXC5ZB","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"P43VJZIXC5ZBARHR","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"P43VJZIX","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:dd98e60cd0732390ff90ad10e1c43c8c0557abb5b99ac3f9d7a755997a22191c","target":"graph","created_at":"2026-05-18T00:11:16Z","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":"In the past few decades, observations have revealed signatures of metals polluting the atmospheres of white dwarfs. The diffusion timescale for metals to sink from the atmosphere of a white dwarf is of the order of days for a hydrogen-dominated atmosphere. Thus, there must be a continuous supply of metal-rich material accreting onto these white dwarfs. We investigate the role of secular resonances that excite the eccentricity of asteroids allowing them to reach star-grazing orbits leading them to tidal disruption and the formation of a debris disc. Changes in the planetary system during the ev","authors_text":"Jeremy L. Smallwood, Mario Livio, Rebecca G. Martin, Stephen H. Lubow","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-07T04:15:55Z","title":"White Dwarf Pollution by Asteroids from Secular Resonances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.02610","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:c3cc5b01c4a3632d6145f8304e5cf9e39d0c0f09500534effedb13a72e1a6906","target":"record","created_at":"2026-05-18T00:11:16Z","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":"f11dc15648c27ec6fed141c6958e977198891a9ff49850e90a69f3fc3e7b11f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-07T04:15:55Z","title_canon_sha256":"261183830d9cad9e2aef6c0e7e868ba8664107ede04042e6a91e61061beeda62"},"schema_version":"1.0","source":{"id":"1807.02610","kind":"arxiv","version":1}},"canonical_sha256":"7f3754e51717721044f130a917be95c629980c0d1683492d89e4da5f8665d5e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f3754e51717721044f130a917be95c629980c0d1683492d89e4da5f8665d5e6","first_computed_at":"2026-05-18T00:11:16.554030Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:16.554030Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HqkIfMPArtZcV4aon3nY8uvFdjjmlxmy3gMXXkr+L/SI98XRoqwTLX9f/jOrAMA6AfHMpWkVWV9399gwtchZBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:16.554755Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.02610","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3cc5b01c4a3632d6145f8304e5cf9e39d0c0f09500534effedb13a72e1a6906","sha256:dd98e60cd0732390ff90ad10e1c43c8c0557abb5b99ac3f9d7a755997a22191c"],"state_sha256":"a8fb5ff34f271875a197c7060b86033d10fd88efca641880dba350b84206de66"}