{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VGZZ4FYQWU3U2OJI6LISMBXYE6","short_pith_number":"pith:VGZZ4FYQ","canonical_record":{"source":{"id":"1507.07933","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-07-28T20:00:43Z","cross_cats_sorted":[],"title_canon_sha256":"4ac8ad71a7c35d608bca6ef405c1f0bf6f3c7a5a725c41942bfcf7314ed86c8d","abstract_canon_sha256":"6f55ab78cc2f21db2a18355702e5399f9a6a9afe7eb63c5fdd9cc16556970943"},"schema_version":"1.0"},"canonical_sha256":"a9b39e1710b5374d3928f2d12606f827a68915937ffc398d306fe963d71fa9c7","source":{"kind":"arxiv","id":"1507.07933","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07933","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07933v1","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07933","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"pith_short_12","alias_value":"VGZZ4FYQWU3U","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VGZZ4FYQWU3U2OJI","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VGZZ4FYQ","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VGZZ4FYQWU3U2OJI6LISMBXYE6","target":"record","payload":{"canonical_record":{"source":{"id":"1507.07933","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-07-28T20:00:43Z","cross_cats_sorted":[],"title_canon_sha256":"4ac8ad71a7c35d608bca6ef405c1f0bf6f3c7a5a725c41942bfcf7314ed86c8d","abstract_canon_sha256":"6f55ab78cc2f21db2a18355702e5399f9a6a9afe7eb63c5fdd9cc16556970943"},"schema_version":"1.0"},"canonical_sha256":"a9b39e1710b5374d3928f2d12606f827a68915937ffc398d306fe963d71fa9c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:58.042272Z","signature_b64":"tX21hK2NgRoKdbMAr+O8liZEdVaX58dTxbZzM67ilu0YP/GP6esmFaPEcUiU9qjvROVKD/bDnowihdgDZNWtAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9b39e1710b5374d3928f2d12606f827a68915937ffc398d306fe963d71fa9c7","last_reissued_at":"2026-05-18T01:30:58.041719Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:58.041719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.07933","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:30:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wfF1y40Gq8h64nKcz/WWK93UDindQo1NNdLfjdFgTDbCC2jV1U0Tca8xdHnSqtaiy0c8vBqUzlFDcdCkZChgAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:30:46.062566Z"},"content_sha256":"3a1955601cd9f8eed556c94e91fd1a46649ec13aa5f3a0e2e6632fe885cf293f","schema_version":"1.0","event_id":"sha256:3a1955601cd9f8eed556c94e91fd1a46649ec13aa5f3a0e2e6632fe885cf293f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VGZZ4FYQWU3U2OJI6LISMBXYE6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Curveballs in protoplanetary disks - the effect of the Magnus force on planet formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"John C. Forbes","submitted_at":"2015-07-28T20:00:43Z","abstract_excerpt":"Spinning planetesimals in a gaseous protoplanetary disk may experience a hydrodynamical force perpendicular to their relative velocities. We examine the effect this force has on the dynamics of these objects using analytical arguments based on a simple laminar disk model and numerical integrations of the equations of motion for individual grains. We focus in particular on meter-sized boulders traditionally expected to spiral in to the central star in as little as 100 years from 1 A.U. We find that there are plausible scenarios in which this force extends the lifetime of these solids in the dis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07933","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:30:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/rYE/jTlFy+NWFm+Sm7tJML2js516CRU66uM9Ik+xRdtaEK1YCpv4SiGGPDkRFzzOEu+fxFVJxS6dN743QYZBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:30:46.063009Z"},"content_sha256":"fd7d7674ff683b132e593358c8858b3ea9845956662770039394003d01e7cbb0","schema_version":"1.0","event_id":"sha256:fd7d7674ff683b132e593358c8858b3ea9845956662770039394003d01e7cbb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6/bundle.json","state_url":"https://pith.science/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T23:30:46Z","links":{"resolver":"https://pith.science/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6","bundle":"https://pith.science/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6/bundle.json","state":"https://pith.science/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VGZZ4FYQWU3U2OJI6LISMBXYE6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VGZZ4FYQWU3U2OJI6LISMBXYE6","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":"6f55ab78cc2f21db2a18355702e5399f9a6a9afe7eb63c5fdd9cc16556970943","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-07-28T20:00:43Z","title_canon_sha256":"4ac8ad71a7c35d608bca6ef405c1f0bf6f3c7a5a725c41942bfcf7314ed86c8d"},"schema_version":"1.0","source":{"id":"1507.07933","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07933","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07933v1","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07933","created_at":"2026-05-18T01:30:58Z"},{"alias_kind":"pith_short_12","alias_value":"VGZZ4FYQWU3U","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VGZZ4FYQWU3U2OJI","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VGZZ4FYQ","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:fd7d7674ff683b132e593358c8858b3ea9845956662770039394003d01e7cbb0","target":"graph","created_at":"2026-05-18T01:30:58Z","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":"Spinning planetesimals in a gaseous protoplanetary disk may experience a hydrodynamical force perpendicular to their relative velocities. We examine the effect this force has on the dynamics of these objects using analytical arguments based on a simple laminar disk model and numerical integrations of the equations of motion for individual grains. We focus in particular on meter-sized boulders traditionally expected to spiral in to the central star in as little as 100 years from 1 A.U. We find that there are plausible scenarios in which this force extends the lifetime of these solids in the dis","authors_text":"John C. Forbes","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-07-28T20:00:43Z","title":"Curveballs in protoplanetary disks - the effect of the Magnus force on planet formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07933","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":"sha256:3a1955601cd9f8eed556c94e91fd1a46649ec13aa5f3a0e2e6632fe885cf293f","target":"record","created_at":"2026-05-18T01:30:58Z","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":"6f55ab78cc2f21db2a18355702e5399f9a6a9afe7eb63c5fdd9cc16556970943","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-07-28T20:00:43Z","title_canon_sha256":"4ac8ad71a7c35d608bca6ef405c1f0bf6f3c7a5a725c41942bfcf7314ed86c8d"},"schema_version":"1.0","source":{"id":"1507.07933","kind":"arxiv","version":1}},"canonical_sha256":"a9b39e1710b5374d3928f2d12606f827a68915937ffc398d306fe963d71fa9c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9b39e1710b5374d3928f2d12606f827a68915937ffc398d306fe963d71fa9c7","first_computed_at":"2026-05-18T01:30:58.041719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:58.041719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tX21hK2NgRoKdbMAr+O8liZEdVaX58dTxbZzM67ilu0YP/GP6esmFaPEcUiU9qjvROVKD/bDnowihdgDZNWtAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:58.042272Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.07933","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a1955601cd9f8eed556c94e91fd1a46649ec13aa5f3a0e2e6632fe885cf293f","sha256:fd7d7674ff683b132e593358c8858b3ea9845956662770039394003d01e7cbb0"],"state_sha256":"84451b25420cb8746aa09a626cf60ad16e4a00d0ad767ac6de49417b0a73a7ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LYnDqXLg5YQgkNFubog5OqYp9d+IMvBU8ONommM57bMfvYMA+mbiuucpE4DOdWqOyeZN0Ctp/YvIHXLuOtF5Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:30:46.065758Z","bundle_sha256":"174eadc8b9f62312d1ca47839a47245b5248c2760b0e8bb7887e1646a074e50d"}}