{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:IQ22JQR2WU75YAFNVH2CYW5HN2","short_pith_number":"pith:IQ22JQR2","canonical_record":{"source":{"id":"1806.01942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-05T21:43:23Z","cross_cats_sorted":[],"title_canon_sha256":"7e9208e7324c6d2234822289e91c64ddc1148b25116feeb592abf8a66a1002cf","abstract_canon_sha256":"2e3639673df57a1ae94a8fa6829139bce1d9e182c3908ea50448c1fcf9de82ee"},"schema_version":"1.0"},"canonical_sha256":"4435a4c23ab53fdc00ada9f42c5ba76eb551450e29f8c36421c8a6cc77315aad","source":{"kind":"arxiv","id":"1806.01942","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01942","created_at":"2026-05-18T00:04:16Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01942v1","created_at":"2026-05-18T00:04:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01942","created_at":"2026-05-18T00:04:16Z"},{"alias_kind":"pith_short_12","alias_value":"IQ22JQR2WU75","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IQ22JQR2WU75YAFN","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IQ22JQR2","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:IQ22JQR2WU75YAFNVH2CYW5HN2","target":"record","payload":{"canonical_record":{"source":{"id":"1806.01942","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-05T21:43:23Z","cross_cats_sorted":[],"title_canon_sha256":"7e9208e7324c6d2234822289e91c64ddc1148b25116feeb592abf8a66a1002cf","abstract_canon_sha256":"2e3639673df57a1ae94a8fa6829139bce1d9e182c3908ea50448c1fcf9de82ee"},"schema_version":"1.0"},"canonical_sha256":"4435a4c23ab53fdc00ada9f42c5ba76eb551450e29f8c36421c8a6cc77315aad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:16.993054Z","signature_b64":"Ju8cvV3Qcb1bBf2xPzpb1nvoIOj6m+6MW9wNqPmOsRudWCgW68xzXnlb6v8D7boaBduzuT0JyprnszvvC9OCCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4435a4c23ab53fdc00ada9f42c5ba76eb551450e29f8c36421c8a6cc77315aad","last_reissued_at":"2026-05-18T00:04:16.992440Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:16.992440Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.01942","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":"2026-05-18T00:04:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/LthYuD2tGJr1w6MHP8F/wRERQ/7XH0cleAJKaduaA2615YShZCKglzN9p3JNpe3MbH1KknizcqDQA9M8a/PDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:18:15.097101Z"},"content_sha256":"d08d7e7a4672a76f817b17f171f0a6cbe259baca1a7561129afe0a93553d7145","schema_version":"1.0","event_id":"sha256:d08d7e7a4672a76f817b17f171f0a6cbe259baca1a7561129afe0a93553d7145"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:IQ22JQR2WU75YAFNVH2CYW5HN2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar wind dynamics around a comet: The paradigmatic inverse-square-law model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Beno\\^it Tabone, Etienne Behar, Melaine Saillenfest","submitted_at":"2018-06-05T21:43:23Z","abstract_excerpt":"Aims. Observations of solar protons near comet 67P/Churyumov-Gerasimenko (67P) by the Rosetta spacecraft can be modelled by the planar motion in an effective magnetic field proportional to 1/r^2. We aim to provide a thorough study of such dynamics, with a clear description of the behaviour of an incoming flux of particles. We will be able, then, to calibrate the free parameters of the model to Rosetta observations.\n  Methods. Basic tools of dynamical analysis are used. They lead to a definition of the relevant parameters for the system and a classification of the possible types of trajectories"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01942","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":"2026-05-18T00:04:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v8eP9xPsj1+tTDTMCb5HTtq/wOL9tHdnEtEAFedIMNzsdbOLB/c8NuGI1/S7RCHjmepISLhrharaKXpRp9dlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:18:15.097501Z"},"content_sha256":"33890ef2b301688c71603144dcc73c830b6b5df406a96566b727d69c6f11ae61","schema_version":"1.0","event_id":"sha256:33890ef2b301688c71603144dcc73c830b6b5df406a96566b727d69c6f11ae61"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IQ22JQR2WU75YAFNVH2CYW5HN2/bundle.json","state_url":"https://pith.science/pith/IQ22JQR2WU75YAFNVH2CYW5HN2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IQ22JQR2WU75YAFNVH2CYW5HN2/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":"2026-05-27T22:18:15Z","links":{"resolver":"https://pith.science/pith/IQ22JQR2WU75YAFNVH2CYW5HN2","bundle":"https://pith.science/pith/IQ22JQR2WU75YAFNVH2CYW5HN2/bundle.json","state":"https://pith.science/pith/IQ22JQR2WU75YAFNVH2CYW5HN2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IQ22JQR2WU75YAFNVH2CYW5HN2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IQ22JQR2WU75YAFNVH2CYW5HN2","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":"2e3639673df57a1ae94a8fa6829139bce1d9e182c3908ea50448c1fcf9de82ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-05T21:43:23Z","title_canon_sha256":"7e9208e7324c6d2234822289e91c64ddc1148b25116feeb592abf8a66a1002cf"},"schema_version":"1.0","source":{"id":"1806.01942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01942","created_at":"2026-05-18T00:04:16Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01942v1","created_at":"2026-05-18T00:04:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01942","created_at":"2026-05-18T00:04:16Z"},{"alias_kind":"pith_short_12","alias_value":"IQ22JQR2WU75","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IQ22JQR2WU75YAFN","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IQ22JQR2","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:33890ef2b301688c71603144dcc73c830b6b5df406a96566b727d69c6f11ae61","target":"graph","created_at":"2026-05-18T00:04:16Z","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":"Aims. Observations of solar protons near comet 67P/Churyumov-Gerasimenko (67P) by the Rosetta spacecraft can be modelled by the planar motion in an effective magnetic field proportional to 1/r^2. We aim to provide a thorough study of such dynamics, with a clear description of the behaviour of an incoming flux of particles. We will be able, then, to calibrate the free parameters of the model to Rosetta observations.\n  Methods. Basic tools of dynamical analysis are used. They lead to a definition of the relevant parameters for the system and a classification of the possible types of trajectories","authors_text":"Beno\\^it Tabone, Etienne Behar, Melaine Saillenfest","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-05T21:43:23Z","title":"Solar wind dynamics around a comet: The paradigmatic inverse-square-law model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01942","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:d08d7e7a4672a76f817b17f171f0a6cbe259baca1a7561129afe0a93553d7145","target":"record","created_at":"2026-05-18T00:04:16Z","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":"2e3639673df57a1ae94a8fa6829139bce1d9e182c3908ea50448c1fcf9de82ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-05T21:43:23Z","title_canon_sha256":"7e9208e7324c6d2234822289e91c64ddc1148b25116feeb592abf8a66a1002cf"},"schema_version":"1.0","source":{"id":"1806.01942","kind":"arxiv","version":1}},"canonical_sha256":"4435a4c23ab53fdc00ada9f42c5ba76eb551450e29f8c36421c8a6cc77315aad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4435a4c23ab53fdc00ada9f42c5ba76eb551450e29f8c36421c8a6cc77315aad","first_computed_at":"2026-05-18T00:04:16.992440Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:16.992440Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ju8cvV3Qcb1bBf2xPzpb1nvoIOj6m+6MW9wNqPmOsRudWCgW68xzXnlb6v8D7boaBduzuT0JyprnszvvC9OCCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:16.993054Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.01942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d08d7e7a4672a76f817b17f171f0a6cbe259baca1a7561129afe0a93553d7145","sha256:33890ef2b301688c71603144dcc73c830b6b5df406a96566b727d69c6f11ae61"],"state_sha256":"5f6f14e216a260d982d6fa328a5d987b7be2b072ddcc6ef627ff177a6ef37460"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O6DhZboMY6kfAqXVb7gFmF8TnLjlKkRv5g2YomDk/jO3f8lFoQziCxjwVPwexyRr6QVwH8pxBoDJr9AKY8FIAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:18:15.100065Z","bundle_sha256":"deaa28af4142359615d131591adb14b44ff1292a0700c73b1a9864fac2d029ed"}}