{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7UD3KVYKQW3BRUG7YOVRQIDLIH","short_pith_number":"pith:7UD3KVYK","canonical_record":{"source":{"id":"1704.09006","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-28T17:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"7a0f3953c8dc7af01fd5c8bdd0cccdd9f89d32bad12d4900fb1ce52737f5f7da","abstract_canon_sha256":"76b0521f1a799c3916a31700f195c3953d37a6b5fba6361b4680809549de3859"},"schema_version":"1.0"},"canonical_sha256":"fd07b5570a85b618d0dfc3ab18206b41d0a1f307941821fbb071d347ffd23beb","source":{"kind":"arxiv","id":"1704.09006","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.09006","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1704.09006v1","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.09006","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"7UD3KVYKQW3B","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7UD3KVYKQW3BRUG7","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7UD3KVYK","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7UD3KVYKQW3BRUG7YOVRQIDLIH","target":"record","payload":{"canonical_record":{"source":{"id":"1704.09006","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-28T17:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"7a0f3953c8dc7af01fd5c8bdd0cccdd9f89d32bad12d4900fb1ce52737f5f7da","abstract_canon_sha256":"76b0521f1a799c3916a31700f195c3953d37a6b5fba6361b4680809549de3859"},"schema_version":"1.0"},"canonical_sha256":"fd07b5570a85b618d0dfc3ab18206b41d0a1f307941821fbb071d347ffd23beb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:25.320931Z","signature_b64":"z/QF0zrvQ42Ia+eC0v+91mps7gwyZXYJlZGSjvNNKj3dTkFbbClnNGnd4FuzwYNT6syxprmP3qTD53TR9nhnDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd07b5570a85b618d0dfc3ab18206b41d0a1f307941821fbb071d347ffd23beb","last_reissued_at":"2026-05-18T00:43:25.320354Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:25.320354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.09006","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":"2026-05-18T00:43:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KdEvvyNNKUPShM9f+AuVefHvcn0zToQhNlvxPPwA72F0sj3A4nCm5i3DrjuS8YMLJnLAuCdQYml4ILn1bwDyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:22:27.092734Z"},"content_sha256":"ccef20d47c292b5969f4d145c45fbbe6410777e230f4d1500e32a096bfd5afb3","schema_version":"1.0","event_id":"sha256:ccef20d47c292b5969f4d145c45fbbe6410777e230f4d1500e32a096bfd5afb3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7UD3KVYKQW3BRUG7YOVRQIDLIH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hydrodynamic simulations of the central molecular zone with realistic Galactic potential","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jeong-Sun Hwang, Jihye Shin, Junichi Baba, Kyungwon Chun, Shunsuke Hozumi, Sungsoo S. Kim, Takayuki R. Saitoh","submitted_at":"2017-04-28T17:00:02Z","abstract_excerpt":"We present hydrodynamic simulations of gas clouds inflowing from the disk to a few hundred parsec region of the Milky Way. A gravitational potential is generated to include realistic Galactic structures by using thousands of multipole expansions that describe 6.4 million stellar particles of a self-consistent Galaxy simulation. We find that a hybrid multipole expansion model, with two different basis sets and a thick disk correction, accurately reproduces the overall structures of the Milky Way. Through non-axisymmetric Galactic structures of an elongated bar and spiral arms, gas clouds in the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.09006","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":"2026-05-18T00:43:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h3x76BMmhCK/qUh4UAD+PINhBrkap4qLUlBqKDdC6jBxS4PV7AYRTIcq9GWX3fa5lTX3BXEXxhrt6phmeGz8Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:22:27.093084Z"},"content_sha256":"c7ad033c76ee5fbd28cb5a1315caecfebe94237f1881f6456653d9a965ce32c4","schema_version":"1.0","event_id":"sha256:c7ad033c76ee5fbd28cb5a1315caecfebe94237f1881f6456653d9a965ce32c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH/bundle.json","state_url":"https://pith.science/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH/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":"2026-06-03T13:22:27Z","links":{"resolver":"https://pith.science/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH","bundle":"https://pith.science/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH/bundle.json","state":"https://pith.science/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7UD3KVYKQW3BRUG7YOVRQIDLIH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7UD3KVYKQW3BRUG7YOVRQIDLIH","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":"76b0521f1a799c3916a31700f195c3953d37a6b5fba6361b4680809549de3859","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-28T17:00:02Z","title_canon_sha256":"7a0f3953c8dc7af01fd5c8bdd0cccdd9f89d32bad12d4900fb1ce52737f5f7da"},"schema_version":"1.0","source":{"id":"1704.09006","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.09006","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1704.09006v1","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.09006","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"7UD3KVYKQW3B","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7UD3KVYKQW3BRUG7","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7UD3KVYK","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:c7ad033c76ee5fbd28cb5a1315caecfebe94237f1881f6456653d9a965ce32c4","target":"graph","created_at":"2026-05-18T00:43:25Z","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 present hydrodynamic simulations of gas clouds inflowing from the disk to a few hundred parsec region of the Milky Way. A gravitational potential is generated to include realistic Galactic structures by using thousands of multipole expansions that describe 6.4 million stellar particles of a self-consistent Galaxy simulation. We find that a hybrid multipole expansion model, with two different basis sets and a thick disk correction, accurately reproduces the overall structures of the Milky Way. Through non-axisymmetric Galactic structures of an elongated bar and spiral arms, gas clouds in the","authors_text":"Jeong-Sun Hwang, Jihye Shin, Junichi Baba, Kyungwon Chun, Shunsuke Hozumi, Sungsoo S. Kim, Takayuki R. Saitoh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-28T17:00:02Z","title":"Hydrodynamic simulations of the central molecular zone with realistic Galactic potential"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.09006","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:ccef20d47c292b5969f4d145c45fbbe6410777e230f4d1500e32a096bfd5afb3","target":"record","created_at":"2026-05-18T00:43:25Z","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":"76b0521f1a799c3916a31700f195c3953d37a6b5fba6361b4680809549de3859","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-28T17:00:02Z","title_canon_sha256":"7a0f3953c8dc7af01fd5c8bdd0cccdd9f89d32bad12d4900fb1ce52737f5f7da"},"schema_version":"1.0","source":{"id":"1704.09006","kind":"arxiv","version":1}},"canonical_sha256":"fd07b5570a85b618d0dfc3ab18206b41d0a1f307941821fbb071d347ffd23beb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd07b5570a85b618d0dfc3ab18206b41d0a1f307941821fbb071d347ffd23beb","first_computed_at":"2026-05-18T00:43:25.320354Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:25.320354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z/QF0zrvQ42Ia+eC0v+91mps7gwyZXYJlZGSjvNNKj3dTkFbbClnNGnd4FuzwYNT6syxprmP3qTD53TR9nhnDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:25.320931Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.09006","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ccef20d47c292b5969f4d145c45fbbe6410777e230f4d1500e32a096bfd5afb3","sha256:c7ad033c76ee5fbd28cb5a1315caecfebe94237f1881f6456653d9a965ce32c4"],"state_sha256":"9ec7d87563114c7cc3b173628265ec558a02c43c3537326812ddac0860f56bdc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RJ6mlPQrqJf4rn1ojgvXXMhREgr6bMo3KGiMh4bdxJt4gc4C8yYaByybgjhTaGf859g1ySzDqPmjkFpVDDUnAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T13:22:27.095122Z","bundle_sha256":"b947634e42318455844ee12191751a5c21e1f6a6b1ac675b10438c191dcf46d8"}}