{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RH3P6VYEDBMHEDCINXOHKJK3ES","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":"e452a1763e27baa1b0140a3d927ba6abd1ce2bf2b9a873d15df9d72ffaedc8cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-10T20:48:31Z","title_canon_sha256":"0f1874a0ccb088e512f397f1e5ea2dd0d46e615be84a0aa102a5e4af4e61fcdf"},"schema_version":"1.0","source":{"id":"1710.03816","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.03816","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"arxiv_version","alias_value":"1710.03816v1","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03816","created_at":"2026-05-18T00:28:52Z"},{"alias_kind":"pith_short_12","alias_value":"RH3P6VYEDBMH","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RH3P6VYEDBMHEDCI","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RH3P6VYE","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:b528f282970c5c789143a5d2c0fb15f1112fbea801b4d6e87e8916f7278cc392","target":"graph","created_at":"2026-05-18T00:28:52Z","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":"Circumstellar discs with large dust depleted cavities and vigorous accretion onto the central star are often considered signposts for (multiple) giant planet formation. In this letter we show that X-ray photoevaporation operating in discs with modest (factors 3-10) gas-phase depletion of Carbon and Oxygen at large radii (> 15 AU) yield the inner radius and accretion rates for most of the observed discs, without the need to invoke giant planet formation. We present one-dimensional viscous evolution models of discs affected by X-ray photoevaporation assuming moderate gas-phase depletion of Carbo","authors_text":"(2) Imperial College, Barbara Ercolano (1), James E. Owen (2) ((1) University of Munich, LMU, London), Michael L. Weber (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-10T20:48:31Z","title":"Accreting Transition Discs with large cavities created by X-ray photoevaporation in C and O depleted discs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03816","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":"sha256:3cfef1adaf55c63c8151c892dae328b6b708657a842ccc0c565f0fa4e74cf00e","target":"record","created_at":"2026-05-18T00:28:52Z","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":"e452a1763e27baa1b0140a3d927ba6abd1ce2bf2b9a873d15df9d72ffaedc8cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-10-10T20:48:31Z","title_canon_sha256":"0f1874a0ccb088e512f397f1e5ea2dd0d46e615be84a0aa102a5e4af4e61fcdf"},"schema_version":"1.0","source":{"id":"1710.03816","kind":"arxiv","version":1}},"canonical_sha256":"89f6ff57041858720c486ddc75255b248df5c194b9c7c9f701202eeb7b6c2447","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89f6ff57041858720c486ddc75255b248df5c194b9c7c9f701202eeb7b6c2447","first_computed_at":"2026-05-18T00:28:52.315847Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:52.315847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"huuCDd8SKrk2ybqjbf+riu4ikeEgAGUwdH7LeymFRaJXL7SZHbUk2dpNbw0synRywvkTlPWG2qpplKAWroGtAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:52.316541Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.03816","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3cfef1adaf55c63c8151c892dae328b6b708657a842ccc0c565f0fa4e74cf00e","sha256:b528f282970c5c789143a5d2c0fb15f1112fbea801b4d6e87e8916f7278cc392"],"state_sha256":"c13485e35c9ea5fef9f690692a00d171a4914122f326987fb49f39bcc5c216dc"}