{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CWVKV2KDL2UIGHKHKEG2CLJ5BW","short_pith_number":"pith:CWVKV2KD","canonical_record":{"source":{"id":"1502.06649","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-23T23:07:11Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"85c75c97cebb4e48576c329c4092ae26984fcf36670d0133fe7ef4aafe2a2822","abstract_canon_sha256":"efe14a716b441c3458213f50f8bf96e011e415f60e5b0f4a8f028ea06a9e650d"},"schema_version":"1.0"},"canonical_sha256":"15aaaae9435ea8831d47510da12d3d0dbb63151f04447a2bd5dfd306149d0aec","source":{"kind":"arxiv","id":"1502.06649","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.06649","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"arxiv_version","alias_value":"1502.06649v2","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.06649","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"pith_short_12","alias_value":"CWVKV2KDL2UI","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CWVKV2KDL2UIGHKH","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CWVKV2KD","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CWVKV2KDL2UIGHKHKEG2CLJ5BW","target":"record","payload":{"canonical_record":{"source":{"id":"1502.06649","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-23T23:07:11Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"85c75c97cebb4e48576c329c4092ae26984fcf36670d0133fe7ef4aafe2a2822","abstract_canon_sha256":"efe14a716b441c3458213f50f8bf96e011e415f60e5b0f4a8f028ea06a9e650d"},"schema_version":"1.0"},"canonical_sha256":"15aaaae9435ea8831d47510da12d3d0dbb63151f04447a2bd5dfd306149d0aec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:54.866258Z","signature_b64":"zWm0JttKjg5sJOM6s3fGDDYEDKaxaNHNPgyq3E2udRiIgrcq+fKjchf5vyC5HnSfeMFUWAQqdAXLqTZ/YnX5CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15aaaae9435ea8831d47510da12d3d0dbb63151f04447a2bd5dfd306149d0aec","last_reissued_at":"2026-05-18T01:40:54.865674Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:54.865674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.06649","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":"2026-05-18T01:40:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"btVhffmgN1WS9dDCmaPhInNuCUfyfTftFw9R9W7i+UTC1EqSwcTGkA+eTpXViYoQ3HbBEuDb9NgO+aXYEJGjAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T20:02:15.556870Z"},"content_sha256":"b8a750e6e39d9eb4e6f4c2e76c1b9d6e59e1c3725059bd5e1f7ef375dd9805d8","schema_version":"1.0","event_id":"sha256:b8a750e6e39d9eb4e6f4c2e76c1b9d6e59e1c3725059bd5e1f7ef375dd9805d8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CWVKV2KDL2UIGHKHKEG2CLJ5BW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A tidal encounter caught in the act: modelling a star-disc fly-by in the young RW Aurigae system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Cathie J. Clarke, Fei Dai, Stefano Facchini, Thomas J. Haworth","submitted_at":"2015-02-23T23:07:11Z","abstract_excerpt":"RW Aurigae (RW Aur) is a binary star system with a long molecular arm trailing the primary star. Cabrit et al. (2006) noted the resemblance between this extended structure and the tidal arm stripped from the primary star in the simulations of star-disc encounters by Clarke & Pringle (1993). In this paper we use new hydrodynamical models and synthetic observations to fit many of the parameters of RW Aur. Using hydrodynamic models we find that the morphological appearance of RW Aur can be indeed explained by a tidal encounter with the secondary star. We reproduce all the major morphological and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.06649","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":"2026-05-18T01:40:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vjTesGG7Wx92X2X5w5YvSppLIhQ7jlB2wlWgJCJ5UH903FkQ1FcW3mKMlUNiLhYhLvVyIG+PeHsiVMyLHa/rDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T20:02:15.557212Z"},"content_sha256":"ef701b8ff34f684c19b7943943e89dfd52cdc1a7e77d7fed9654e840ea5b5c61","schema_version":"1.0","event_id":"sha256:ef701b8ff34f684c19b7943943e89dfd52cdc1a7e77d7fed9654e840ea5b5c61"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW/bundle.json","state_url":"https://pith.science/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW/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":"2026-06-10T20:02:15Z","links":{"resolver":"https://pith.science/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW","bundle":"https://pith.science/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW/bundle.json","state":"https://pith.science/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CWVKV2KDL2UIGHKHKEG2CLJ5BW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CWVKV2KDL2UIGHKHKEG2CLJ5BW","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":"efe14a716b441c3458213f50f8bf96e011e415f60e5b0f4a8f028ea06a9e650d","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-23T23:07:11Z","title_canon_sha256":"85c75c97cebb4e48576c329c4092ae26984fcf36670d0133fe7ef4aafe2a2822"},"schema_version":"1.0","source":{"id":"1502.06649","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.06649","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"arxiv_version","alias_value":"1502.06649v2","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.06649","created_at":"2026-05-18T01:40:54Z"},{"alias_kind":"pith_short_12","alias_value":"CWVKV2KDL2UI","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CWVKV2KDL2UIGHKH","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CWVKV2KD","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:ef701b8ff34f684c19b7943943e89dfd52cdc1a7e77d7fed9654e840ea5b5c61","target":"graph","created_at":"2026-05-18T01:40:54Z","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":"RW Aurigae (RW Aur) is a binary star system with a long molecular arm trailing the primary star. Cabrit et al. (2006) noted the resemblance between this extended structure and the tidal arm stripped from the primary star in the simulations of star-disc encounters by Clarke & Pringle (1993). In this paper we use new hydrodynamical models and synthetic observations to fit many of the parameters of RW Aur. Using hydrodynamic models we find that the morphological appearance of RW Aur can be indeed explained by a tidal encounter with the secondary star. We reproduce all the major morphological and ","authors_text":"Cathie J. Clarke, Fei Dai, Stefano Facchini, Thomas J. Haworth","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-23T23:07:11Z","title":"A tidal encounter caught in the act: modelling a star-disc fly-by in the young RW Aurigae system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.06649","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:b8a750e6e39d9eb4e6f4c2e76c1b9d6e59e1c3725059bd5e1f7ef375dd9805d8","target":"record","created_at":"2026-05-18T01:40:54Z","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":"efe14a716b441c3458213f50f8bf96e011e415f60e5b0f4a8f028ea06a9e650d","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-23T23:07:11Z","title_canon_sha256":"85c75c97cebb4e48576c329c4092ae26984fcf36670d0133fe7ef4aafe2a2822"},"schema_version":"1.0","source":{"id":"1502.06649","kind":"arxiv","version":2}},"canonical_sha256":"15aaaae9435ea8831d47510da12d3d0dbb63151f04447a2bd5dfd306149d0aec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15aaaae9435ea8831d47510da12d3d0dbb63151f04447a2bd5dfd306149d0aec","first_computed_at":"2026-05-18T01:40:54.865674Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:54.865674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zWm0JttKjg5sJOM6s3fGDDYEDKaxaNHNPgyq3E2udRiIgrcq+fKjchf5vyC5HnSfeMFUWAQqdAXLqTZ/YnX5CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:54.866258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.06649","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8a750e6e39d9eb4e6f4c2e76c1b9d6e59e1c3725059bd5e1f7ef375dd9805d8","sha256:ef701b8ff34f684c19b7943943e89dfd52cdc1a7e77d7fed9654e840ea5b5c61"],"state_sha256":"e9bf40b4d332b03077cd1bd0351f8ff5b8d00f3e562be6fa7f809dcd18c0c51e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Py8nabVYXxNgFcOkGT3Eenh8Fd1A1qXhHsrfxpaMxLn7yI1SWz6B74fo6qG19NI46brmf1D+RLFrt9RpKcNICA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T20:02:15.559111Z","bundle_sha256":"1ca3173a9800c6831fcc0c73c2ddba30aaed156331cec4dafd753eee2cb1400c"}}