{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:24HLWP6KQZQYBIYP5OWRQH4LRP","short_pith_number":"pith:24HLWP6K","canonical_record":{"source":{"id":"1407.5995","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-07-22T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"598bf463e4d39f03583d2e360281c06c922956f739005c26bec2f6d725333fa9","abstract_canon_sha256":"769f29e347c6c0d6f022db17e39235620f808c0a2e231c6f5faa217d54fdcdb9"},"schema_version":"1.0"},"canonical_sha256":"d70ebb3fca866180a30febad181f8b8bfff85fa1691dab483257a2f2d95ad579","source":{"kind":"arxiv","id":"1407.5995","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5995","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5995v1","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5995","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"24HLWP6KQZQY","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"24HLWP6KQZQYBIYP","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"24HLWP6K","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:24HLWP6KQZQYBIYP5OWRQH4LRP","target":"record","payload":{"canonical_record":{"source":{"id":"1407.5995","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-07-22T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"598bf463e4d39f03583d2e360281c06c922956f739005c26bec2f6d725333fa9","abstract_canon_sha256":"769f29e347c6c0d6f022db17e39235620f808c0a2e231c6f5faa217d54fdcdb9"},"schema_version":"1.0"},"canonical_sha256":"d70ebb3fca866180a30febad181f8b8bfff85fa1691dab483257a2f2d95ad579","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:32.967289Z","signature_b64":"h3TT8og3PpgwBdZz/OkZvzlnXmUWwen6lhlcjzZmqsXvy6P5TQzQRxMMWIDhDLjlo/GJDlAocNSimNN8p2lSCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d70ebb3fca866180a30febad181f8b8bfff85fa1691dab483257a2f2d95ad579","last_reissued_at":"2026-05-18T01:42:32.966793Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:32.966793Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.5995","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":"2026-05-18T01:42:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q9i9uzFfdaGkgsKWBsgfqo28XyMgERsHFrhQ9bXqjPyehMeE/uyI9cFprIXZG4fQLhtZCcQqz2Ko3tUYs2+eCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:35:38.956377Z"},"content_sha256":"376c13030cbb5bcd7664243702c898c25644b6eeb8180b34a298e86e2e262596","schema_version":"1.0","event_id":"sha256:376c13030cbb5bcd7664243702c898c25644b6eeb8180b34a298e86e2e262596"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:24HLWP6KQZQYBIYP5OWRQH4LRP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Feeding Zone of Planetesimal Formation by the Streaming Instability","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Anders Johansen, Chao-Chin Yang","submitted_at":"2014-07-22T20:00:03Z","abstract_excerpt":"The streaming instability is a promising mechanism to overcome the barriers in direct dust growth and lead to the formation of planetesimals. Most previous studies of the streaming instability, however, were focused on a local region of a protoplanetary disk with a limited simulation domain such that only one filamentary concentration of solids has been observed. The characteristic separation between filaments is therefore not known. To address this, we conduct the largest-scale simulations of the streaming instability to date, with computational domains up to 1.6 gas scale heights both horizo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5995","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":"2026-05-18T01:42:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eesY78AQOlX9h1ir9f7wqiXtWZ82e3pjLv41WSvzmHU42P3A/cRvb4RPA7z6nQk/HHIpv6YANUwl29IFIzePDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:35:38.957073Z"},"content_sha256":"44c372c31025fef0121ac53afa200df7f04e9c224b3a79e292093ae4b086e6e7","schema_version":"1.0","event_id":"sha256:44c372c31025fef0121ac53afa200df7f04e9c224b3a79e292093ae4b086e6e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/24HLWP6KQZQYBIYP5OWRQH4LRP/bundle.json","state_url":"https://pith.science/pith/24HLWP6KQZQYBIYP5OWRQH4LRP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/24HLWP6KQZQYBIYP5OWRQH4LRP/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":"2026-06-06T21:35:38Z","links":{"resolver":"https://pith.science/pith/24HLWP6KQZQYBIYP5OWRQH4LRP","bundle":"https://pith.science/pith/24HLWP6KQZQYBIYP5OWRQH4LRP/bundle.json","state":"https://pith.science/pith/24HLWP6KQZQYBIYP5OWRQH4LRP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/24HLWP6KQZQYBIYP5OWRQH4LRP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:24HLWP6KQZQYBIYP5OWRQH4LRP","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":"769f29e347c6c0d6f022db17e39235620f808c0a2e231c6f5faa217d54fdcdb9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-07-22T20:00:03Z","title_canon_sha256":"598bf463e4d39f03583d2e360281c06c922956f739005c26bec2f6d725333fa9"},"schema_version":"1.0","source":{"id":"1407.5995","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5995","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5995v1","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5995","created_at":"2026-05-18T01:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"24HLWP6KQZQY","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"24HLWP6KQZQYBIYP","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"24HLWP6K","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:44c372c31025fef0121ac53afa200df7f04e9c224b3a79e292093ae4b086e6e7","target":"graph","created_at":"2026-05-18T01:42:32Z","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":"The streaming instability is a promising mechanism to overcome the barriers in direct dust growth and lead to the formation of planetesimals. Most previous studies of the streaming instability, however, were focused on a local region of a protoplanetary disk with a limited simulation domain such that only one filamentary concentration of solids has been observed. The characteristic separation between filaments is therefore not known. To address this, we conduct the largest-scale simulations of the streaming instability to date, with computational domains up to 1.6 gas scale heights both horizo","authors_text":"Anders Johansen, Chao-Chin Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-07-22T20:00:03Z","title":"On the Feeding Zone of Planetesimal Formation by the Streaming Instability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5995","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":"sha256:376c13030cbb5bcd7664243702c898c25644b6eeb8180b34a298e86e2e262596","target":"record","created_at":"2026-05-18T01:42:32Z","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":"769f29e347c6c0d6f022db17e39235620f808c0a2e231c6f5faa217d54fdcdb9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2014-07-22T20:00:03Z","title_canon_sha256":"598bf463e4d39f03583d2e360281c06c922956f739005c26bec2f6d725333fa9"},"schema_version":"1.0","source":{"id":"1407.5995","kind":"arxiv","version":1}},"canonical_sha256":"d70ebb3fca866180a30febad181f8b8bfff85fa1691dab483257a2f2d95ad579","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d70ebb3fca866180a30febad181f8b8bfff85fa1691dab483257a2f2d95ad579","first_computed_at":"2026-05-18T01:42:32.966793Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:32.966793Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h3TT8og3PpgwBdZz/OkZvzlnXmUWwen6lhlcjzZmqsXvy6P5TQzQRxMMWIDhDLjlo/GJDlAocNSimNN8p2lSCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:32.967289Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.5995","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:376c13030cbb5bcd7664243702c898c25644b6eeb8180b34a298e86e2e262596","sha256:44c372c31025fef0121ac53afa200df7f04e9c224b3a79e292093ae4b086e6e7"],"state_sha256":"67be4dafa181c9e4d70edf0e4b89147fe65bbf236a1a9155e13903f8bfc700eb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A0/AuuF/9ns/ms4bArKegQLTWE33LSTRqXZJyHK45MNJ6hiqEOWpUKQMljm7nIV6tKUXKG+U5nPuhW6NaPh3DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T21:35:38.960811Z","bundle_sha256":"7f4da13f8aad27bc165080a25b60b061d4fc136526088dd537cd100bd6d459b1"}}