{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:UM35YNEA4N2HHWOMT436247KCR","short_pith_number":"pith:UM35YNEA","canonical_record":{"source":{"id":"1103.1629","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-03-08T21:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"ac34ba9a1f753fe84879befc2069b76f79f42cd945fd3f37d77bb5f728194b7c","abstract_canon_sha256":"0a8f52dcb3f238b852c1d3357b86c7d351b4556e1e24a3003e99cedb1107a4cd"},"schema_version":"1.0"},"canonical_sha256":"a337dc3480e37473d9cc9f37ed73ea14450e5d22e9f74ec51202552ea75c1d86","source":{"kind":"arxiv","id":"1103.1629","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1629","created_at":"2026-05-18T02:02:56Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1629v2","created_at":"2026-05-18T02:02:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1629","created_at":"2026-05-18T02:02:56Z"},{"alias_kind":"pith_short_12","alias_value":"UM35YNEA4N2H","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UM35YNEA4N2HHWOM","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UM35YNEA","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:UM35YNEA4N2HHWOMT436247KCR","target":"record","payload":{"canonical_record":{"source":{"id":"1103.1629","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-03-08T21:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"ac34ba9a1f753fe84879befc2069b76f79f42cd945fd3f37d77bb5f728194b7c","abstract_canon_sha256":"0a8f52dcb3f238b852c1d3357b86c7d351b4556e1e24a3003e99cedb1107a4cd"},"schema_version":"1.0"},"canonical_sha256":"a337dc3480e37473d9cc9f37ed73ea14450e5d22e9f74ec51202552ea75c1d86","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:56.260429Z","signature_b64":"SI/s36DZ301/5wTZW61S5jAKgw2to4mWkvgd/qvWY89WKTZHRNrUGo25k5wlnY7/FbGeiEOHa0QXutj49pWgDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a337dc3480e37473d9cc9f37ed73ea14450e5d22e9f74ec51202552ea75c1d86","last_reissued_at":"2026-05-18T02:02:56.259783Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:56.259783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.1629","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:02:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ybhA3caqSbD2CrU2mYXIL4z4qQUcz0ZFN7EufWmXiVGraEFfgn/di7h4hqD0hZoLxtB/c7FFeFMLUXrtnMD1Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:15:11.468530Z"},"content_sha256":"611dc492b531e754f5833a44acc053b62fb8d2e9952d248616971237338bd681","schema_version":"1.0","event_id":"sha256:611dc492b531e754f5833a44acc053b62fb8d2e9952d248616971237338bd681"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:UM35YNEA4N2HHWOMT436247KCR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Wind-shearing in gaseous protoplanetary disks and the evolution of binary planetesimals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Hagai B. Perets, Ruth A. Murray-Clay","submitted_at":"2011-03-08T21:00:04Z","abstract_excerpt":"One of the first stages of planet formation is the growth of small planetesimals. This early stage occurs much before the dispersal of most of the gas from the protoplanetary disk. Due to their different aerodynamic properties, planetesimals of different sizes and shapes experience different drag forces from the gas during this time. Such differential forces produce a wind-shearing (WISH) effect between close by, different size planetesimals. For any two planetesimals, a WISH radius can be considered, at which the differential acceleration due to the wind becomes greater than the mutual gravit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1629","kind":"arxiv","version":2},"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":"2026-05-18T02:02:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NbYf6dYrg0Zydg5u/UtX7oUz/wsLkpod13v9MdQcfmph35sxoYNSJdkvGlbnCzlU8eZ5BrdLiGY52pmncUMQCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:15:11.468871Z"},"content_sha256":"9b6c197ac7ae64098e8404a97d6fee4353f82e6802f7a8a3ed9130d19c222cab","schema_version":"1.0","event_id":"sha256:9b6c197ac7ae64098e8404a97d6fee4353f82e6802f7a8a3ed9130d19c222cab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UM35YNEA4N2HHWOMT436247KCR/bundle.json","state_url":"https://pith.science/pith/UM35YNEA4N2HHWOMT436247KCR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UM35YNEA4N2HHWOMT436247KCR/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":"2026-06-02T10:15:11Z","links":{"resolver":"https://pith.science/pith/UM35YNEA4N2HHWOMT436247KCR","bundle":"https://pith.science/pith/UM35YNEA4N2HHWOMT436247KCR/bundle.json","state":"https://pith.science/pith/UM35YNEA4N2HHWOMT436247KCR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UM35YNEA4N2HHWOMT436247KCR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UM35YNEA4N2HHWOMT436247KCR","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":"0a8f52dcb3f238b852c1d3357b86c7d351b4556e1e24a3003e99cedb1107a4cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-03-08T21:00:04Z","title_canon_sha256":"ac34ba9a1f753fe84879befc2069b76f79f42cd945fd3f37d77bb5f728194b7c"},"schema_version":"1.0","source":{"id":"1103.1629","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1629","created_at":"2026-05-18T02:02:56Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1629v2","created_at":"2026-05-18T02:02:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1629","created_at":"2026-05-18T02:02:56Z"},{"alias_kind":"pith_short_12","alias_value":"UM35YNEA4N2H","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UM35YNEA4N2HHWOM","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UM35YNEA","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:9b6c197ac7ae64098e8404a97d6fee4353f82e6802f7a8a3ed9130d19c222cab","target":"graph","created_at":"2026-05-18T02:02:56Z","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":"One of the first stages of planet formation is the growth of small planetesimals. This early stage occurs much before the dispersal of most of the gas from the protoplanetary disk. Due to their different aerodynamic properties, planetesimals of different sizes and shapes experience different drag forces from the gas during this time. Such differential forces produce a wind-shearing (WISH) effect between close by, different size planetesimals. For any two planetesimals, a WISH radius can be considered, at which the differential acceleration due to the wind becomes greater than the mutual gravit","authors_text":"Hagai B. Perets, Ruth A. Murray-Clay","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-03-08T21:00:04Z","title":"Wind-shearing in gaseous protoplanetary disks and the evolution of binary planetesimals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1629","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":"sha256:611dc492b531e754f5833a44acc053b62fb8d2e9952d248616971237338bd681","target":"record","created_at":"2026-05-18T02:02:56Z","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":"0a8f52dcb3f238b852c1d3357b86c7d351b4556e1e24a3003e99cedb1107a4cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-03-08T21:00:04Z","title_canon_sha256":"ac34ba9a1f753fe84879befc2069b76f79f42cd945fd3f37d77bb5f728194b7c"},"schema_version":"1.0","source":{"id":"1103.1629","kind":"arxiv","version":2}},"canonical_sha256":"a337dc3480e37473d9cc9f37ed73ea14450e5d22e9f74ec51202552ea75c1d86","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a337dc3480e37473d9cc9f37ed73ea14450e5d22e9f74ec51202552ea75c1d86","first_computed_at":"2026-05-18T02:02:56.259783Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:56.259783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SI/s36DZ301/5wTZW61S5jAKgw2to4mWkvgd/qvWY89WKTZHRNrUGo25k5wlnY7/FbGeiEOHa0QXutj49pWgDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:56.260429Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.1629","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:611dc492b531e754f5833a44acc053b62fb8d2e9952d248616971237338bd681","sha256:9b6c197ac7ae64098e8404a97d6fee4353f82e6802f7a8a3ed9130d19c222cab"],"state_sha256":"a4f63823f8ce894de563be9b2318a2aed9c2644bd336ffad7cc1c73b8a4ce9b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0kLZP+5/5PxZLKUlFvAaTy1KQsC23rgqvSNy3krQmE50eawbWXmpu6enuYgk99pHdHf/46h3TkAJ6crr367/Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T10:15:11.470805Z","bundle_sha256":"2e5513ce9e87cf181e89497f736163bbbfa2130b37b51cab508354a116e51639"}}