{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:FYNPRLXDJW2USXBOBXYGXG4X2X","short_pith_number":"pith:FYNPRLXD","canonical_record":{"source":{"id":"1308.0627","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-02T21:58:02Z","cross_cats_sorted":[],"title_canon_sha256":"f816d76e360556264949f2c1d6ff9c839fdfc7734ee368d03f3d1e9dace21f0a","abstract_canon_sha256":"249b60e8a31ec3618c946739ced4a96a97725ed2064bef2b32e3324f07fb23f8"},"schema_version":"1.0"},"canonical_sha256":"2e1af8aee34db5495c2e0df06b9b97d5fd54c5f7ac0f48bea52b21c9c84a1bca","source":{"kind":"arxiv","id":"1308.0627","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0627","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0627v1","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0627","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"pith_short_12","alias_value":"FYNPRLXDJW2U","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FYNPRLXDJW2USXBO","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FYNPRLXD","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:FYNPRLXDJW2USXBOBXYGXG4X2X","target":"record","payload":{"canonical_record":{"source":{"id":"1308.0627","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-02T21:58:02Z","cross_cats_sorted":[],"title_canon_sha256":"f816d76e360556264949f2c1d6ff9c839fdfc7734ee368d03f3d1e9dace21f0a","abstract_canon_sha256":"249b60e8a31ec3618c946739ced4a96a97725ed2064bef2b32e3324f07fb23f8"},"schema_version":"1.0"},"canonical_sha256":"2e1af8aee34db5495c2e0df06b9b97d5fd54c5f7ac0f48bea52b21c9c84a1bca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:24.371044Z","signature_b64":"zuqUEYZ4HpBZ/LHHzdL3E5u1Edjz4qn/HCqvr33wxO3lnpFv6b4yxKTXPU+KWZYEJAWGBGytmrt3ARdi5+1JAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e1af8aee34db5495c2e0df06b9b97d5fd54c5f7ac0f48bea52b21c9c84a1bca","last_reissued_at":"2026-05-18T01:48:24.370404Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:24.370404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.0627","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":"2026-05-18T01:48:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wqTUjJ+rUXWn1pHWBCEHpbx6jgmCm7M6JsS4rrcz6ICbbYISVVHd0rFs+pdhy1Rza8cmqMJeD1+uvohyDl5tBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T16:27:30.034459Z"},"content_sha256":"61757fa5a7095b9788ba1a1ea30ea7b7afa60b6b07eac8a95f7541db70c78d13","schema_version":"1.0","event_id":"sha256:61757fa5a7095b9788ba1a1ea30ea7b7afa60b6b07eac8a95f7541db70c78d13"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:FYNPRLXDJW2USXBOBXYGXG4X2X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Galactic Ring of Minimum Stellar Density Near the Solar Orbit Radius","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Douglas A. Barros, Jacques R. D. L\\'epine, Thiago C. Junqueira","submitted_at":"2013-08-02T21:58:02Z","abstract_excerpt":"We analyse the secular effects of a long-lived Galactic spiral structure on the stellar orbits with mean radii close to the corotation resonance. By test-particle simulations and different spiral potential models with parameters constrained on observations, we verified the formation of a minimum with amplitude ~ 30% - 40% of the background disk stellar density at corotation. Such minimum is formed by the secular angular momentum transfer between stars and the spiral density wave on both sides of corotation. We demonstrate that the secular loss (gain) of angular momentum and decrease (increase)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0627","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":"2026-05-18T01:48:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UTZ/jrvTaA8Wipg/Qj2OTruAif/BkNZ8XSmG4qc1ElVMlw32huxO9WFGij2e9WQz0S1Ph1VhSjVzQ0H9Wdr+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T16:27:30.034803Z"},"content_sha256":"ec0957602a4e5884145ea2475d355efd07e2572747b23ed37fd330c0153e3051","schema_version":"1.0","event_id":"sha256:ec0957602a4e5884145ea2475d355efd07e2572747b23ed37fd330c0153e3051"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FYNPRLXDJW2USXBOBXYGXG4X2X/bundle.json","state_url":"https://pith.science/pith/FYNPRLXDJW2USXBOBXYGXG4X2X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FYNPRLXDJW2USXBOBXYGXG4X2X/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":"2026-06-02T16:27:30Z","links":{"resolver":"https://pith.science/pith/FYNPRLXDJW2USXBOBXYGXG4X2X","bundle":"https://pith.science/pith/FYNPRLXDJW2USXBOBXYGXG4X2X/bundle.json","state":"https://pith.science/pith/FYNPRLXDJW2USXBOBXYGXG4X2X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FYNPRLXDJW2USXBOBXYGXG4X2X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FYNPRLXDJW2USXBOBXYGXG4X2X","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":"249b60e8a31ec3618c946739ced4a96a97725ed2064bef2b32e3324f07fb23f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-02T21:58:02Z","title_canon_sha256":"f816d76e360556264949f2c1d6ff9c839fdfc7734ee368d03f3d1e9dace21f0a"},"schema_version":"1.0","source":{"id":"1308.0627","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0627","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0627v1","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0627","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"pith_short_12","alias_value":"FYNPRLXDJW2U","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FYNPRLXDJW2USXBO","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FYNPRLXD","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:ec0957602a4e5884145ea2475d355efd07e2572747b23ed37fd330c0153e3051","target":"graph","created_at":"2026-05-18T01:48:24Z","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":"We analyse the secular effects of a long-lived Galactic spiral structure on the stellar orbits with mean radii close to the corotation resonance. By test-particle simulations and different spiral potential models with parameters constrained on observations, we verified the formation of a minimum with amplitude ~ 30% - 40% of the background disk stellar density at corotation. Such minimum is formed by the secular angular momentum transfer between stars and the spiral density wave on both sides of corotation. We demonstrate that the secular loss (gain) of angular momentum and decrease (increase)","authors_text":"Douglas A. Barros, Jacques R. D. L\\'epine, Thiago C. Junqueira","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-02T21:58:02Z","title":"A Galactic Ring of Minimum Stellar Density Near the Solar Orbit Radius"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0627","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":"sha256:61757fa5a7095b9788ba1a1ea30ea7b7afa60b6b07eac8a95f7541db70c78d13","target":"record","created_at":"2026-05-18T01:48:24Z","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":"249b60e8a31ec3618c946739ced4a96a97725ed2064bef2b32e3324f07fb23f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-02T21:58:02Z","title_canon_sha256":"f816d76e360556264949f2c1d6ff9c839fdfc7734ee368d03f3d1e9dace21f0a"},"schema_version":"1.0","source":{"id":"1308.0627","kind":"arxiv","version":1}},"canonical_sha256":"2e1af8aee34db5495c2e0df06b9b97d5fd54c5f7ac0f48bea52b21c9c84a1bca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e1af8aee34db5495c2e0df06b9b97d5fd54c5f7ac0f48bea52b21c9c84a1bca","first_computed_at":"2026-05-18T01:48:24.370404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:24.370404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zuqUEYZ4HpBZ/LHHzdL3E5u1Edjz4qn/HCqvr33wxO3lnpFv6b4yxKTXPU+KWZYEJAWGBGytmrt3ARdi5+1JAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:24.371044Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.0627","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61757fa5a7095b9788ba1a1ea30ea7b7afa60b6b07eac8a95f7541db70c78d13","sha256:ec0957602a4e5884145ea2475d355efd07e2572747b23ed37fd330c0153e3051"],"state_sha256":"4c105feae41c4e169900e6e288444ca6b894118f405920c503780c43c736edd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+QBdn5eB3wGYFykwNWToCruBWJS7TKK1VekeRjyyQdMgJ1MlJQU4xrxA9etqu6R0WgWQilvhtzXHLewQILnGDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T16:27:30.036933Z","bundle_sha256":"07a7b163532ae437e29c89e945355b825280e8294027d6ee34c3772f92966f9d"}}