{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KCNVN5SCTWNVBGREDOVGUSEOF7","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":"be57ffcbced50ae1eda79a648492039f556f613221c7225822835c3f03e3bd47","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T19:58:39Z","title_canon_sha256":"fe2718b5502af4a962ac30b1272c8186cec1d5ec7e4144afbe79b070a800bca6"},"schema_version":"1.0","source":{"id":"1309.2278","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.2278","created_at":"2026-05-18T03:13:09Z"},{"alias_kind":"arxiv_version","alias_value":"1309.2278v2","created_at":"2026-05-18T03:13:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.2278","created_at":"2026-05-18T03:13:09Z"},{"alias_kind":"pith_short_12","alias_value":"KCNVN5SCTWNV","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"KCNVN5SCTWNVBGRE","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"KCNVN5SC","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:67d415fdcaaf509947ef5c175292746438f0aa8152e22b9b4988160eb68ded52","target":"graph","created_at":"2026-05-18T03:13:09Z","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":"We use the adaptive mesh refinement code RAMSES to model the formation of protoplanetary disks in realistic star formation environments. The resolution scales over up to 29 powers of two ($\\sim$ 9 orders of magnitude) covering a range from outer scales of 40 pc to inner scales of 0.015 AU. The accretion rate from a 1.5 solar mass envelope peaks near $10^{-4}$ $\\mspy$ about 6 kyr after sink particle formation and then decays approximately exponentially, reaching $10^{-6}$ $\\mspy$ in 100 kyr. The models suggest universal scalings of physical properties with radius during the main accretion phase","authors_text":"2), 2) (Niels Bohr Institute, A. Nordlund (1, A. Vasileiades (1, Centre for Star, ICC, ICREA, M. Kuffmeier (1, Planet Formation, P. Padoan (3), T. Haugboelle (2), Univ. of Barcelona (3)), Univ. of Copenhagen (1), Univ. of Copenhagen (2)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T19:58:39Z","title":"Zooming in on the Formation of Protoplanetary Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.2278","kind":"arxiv","version":2},"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":"sha256:611e69ed025686c4b7c6d8c8dbaebaaadeadcc4f4f4e4fb77c3aec8e962502fa","target":"record","created_at":"2026-05-18T03:13:09Z","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":"be57ffcbced50ae1eda79a648492039f556f613221c7225822835c3f03e3bd47","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-09-09T19:58:39Z","title_canon_sha256":"fe2718b5502af4a962ac30b1272c8186cec1d5ec7e4144afbe79b070a800bca6"},"schema_version":"1.0","source":{"id":"1309.2278","kind":"arxiv","version":2}},"canonical_sha256":"509b56f6429d9b509a241baa6a488e2fc18ee3dac0211142dca4bd6a6f32a31f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"509b56f6429d9b509a241baa6a488e2fc18ee3dac0211142dca4bd6a6f32a31f","first_computed_at":"2026-05-18T03:13:09.577429Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:13:09.577429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cCZ+ltx6zIjgAzr1vJphk4BGDxRR9bvtwJzcaLNBpM6TIIcO+s/3FIjzmAuxB7YFm5++wSI0UafpSMoyrTd6DA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:13:09.577854Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.2278","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:611e69ed025686c4b7c6d8c8dbaebaaadeadcc4f4f4e4fb77c3aec8e962502fa","sha256:67d415fdcaaf509947ef5c175292746438f0aa8152e22b9b4988160eb68ded52"],"state_sha256":"0654b47d88af8d2ca7495746c6270036fbf4b6fd6dbbe4eac850b31231ec30ae"}