{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GR37BXQEW2WZND5GTCBDP5XENO","short_pith_number":"pith:GR37BXQE","canonical_record":{"source":{"id":"1807.04592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-12T13:12:34Z","cross_cats_sorted":[],"title_canon_sha256":"edfd8bc1729f72178194d1abb29f95551664bfffbb79bcf07f8c3b40715a3d8e","abstract_canon_sha256":"af5938545f7dce520e9c3ee27817808823e09f837d1be0e6535fd8b19fa757b5"},"schema_version":"1.0"},"canonical_sha256":"3477f0de04b6ad968fa6988237f6e46ba90d8342d898a2e421669c7d4e67b6ef","source":{"kind":"arxiv","id":"1807.04592","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.04592","created_at":"2026-05-18T00:08:05Z"},{"alias_kind":"arxiv_version","alias_value":"1807.04592v1","created_at":"2026-05-18T00:08:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.04592","created_at":"2026-05-18T00:08:05Z"},{"alias_kind":"pith_short_12","alias_value":"GR37BXQEW2WZ","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GR37BXQEW2WZND5G","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GR37BXQE","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GR37BXQEW2WZND5GTCBDP5XENO","target":"record","payload":{"canonical_record":{"source":{"id":"1807.04592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-12T13:12:34Z","cross_cats_sorted":[],"title_canon_sha256":"edfd8bc1729f72178194d1abb29f95551664bfffbb79bcf07f8c3b40715a3d8e","abstract_canon_sha256":"af5938545f7dce520e9c3ee27817808823e09f837d1be0e6535fd8b19fa757b5"},"schema_version":"1.0"},"canonical_sha256":"3477f0de04b6ad968fa6988237f6e46ba90d8342d898a2e421669c7d4e67b6ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:05.947360Z","signature_b64":"l1eEJOgBdhEzpgaTaUkUBVWOMSZ1qW3cVDCdh7c1rpRgTF3FSJaZ03thJSoIqgB4YEmwZofbXtqcMM+uNRNyAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3477f0de04b6ad968fa6988237f6e46ba90d8342d898a2e421669c7d4e67b6ef","last_reissued_at":"2026-05-18T00:08:05.946776Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:05.946776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.04592","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":"2026-05-18T00:08:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rdG4KKZLdKdgPSvrtxcc535f91Cl5qElkZlN+xDgONgif53/T2CM1LAcmQOAYJ+BLJtiIv3bQPU+Xicg395ECw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:34:03.958743Z"},"content_sha256":"a49191b5c06e5d0507a263237b40c609c53f40e3d1a8036ece19da670fad8bb1","schema_version":"1.0","event_id":"sha256:a49191b5c06e5d0507a263237b40c609c53f40e3d1a8036ece19da670fad8bb1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GR37BXQEW2WZND5GTCBDP5XENO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stellar mass distribution and star formation history of the Galactic disk revealed by mono-age stellar populations from LAMOST","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bingqiu Chen, Chun Wang, Haibo Yuan, Huawei Zhang, Jianrong Shi, Maosheng Xiang, Meng Zhang, Xiaowei Liu, Yang Huang, Zhijia Tian, Zhiying Huo","submitted_at":"2018-07-12T13:12:34Z","abstract_excerpt":"We present a detailed determination and analysis of 3D stellar mass distribution of the Galactic disk for mono-age populations using a sample of 0.93 million main-sequence turn-off and subgiant stars from the LAMOST Galactic Surveys. Our results show (1) all stellar populations younger than 10\\,Gyr exhibit strong disk flaring, which is accompanied with a dumpy vertical density profile that is best described by a $sech^n$ function with index depending on both radius and age; (2) Asymmetries and wave-like oscillations are presented in both the radial and vertical direction, with strength varying"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.04592","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":"2026-05-18T00:08:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+q/DWItUMKCzzWUupccWZb1GuT3FQVrzNUgvPrKvPLdn2yF5h3wQWcb1GYUCARr/LaM5mZ20NoBWqoLiF1i2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T01:34:03.959395Z"},"content_sha256":"50c7da999f62e75ff6875323fab4167d45542732c25ddba42d040c8011b48f60","schema_version":"1.0","event_id":"sha256:50c7da999f62e75ff6875323fab4167d45542732c25ddba42d040c8011b48f60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GR37BXQEW2WZND5GTCBDP5XENO/bundle.json","state_url":"https://pith.science/pith/GR37BXQEW2WZND5GTCBDP5XENO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GR37BXQEW2WZND5GTCBDP5XENO/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":"2026-05-30T01:34:03Z","links":{"resolver":"https://pith.science/pith/GR37BXQEW2WZND5GTCBDP5XENO","bundle":"https://pith.science/pith/GR37BXQEW2WZND5GTCBDP5XENO/bundle.json","state":"https://pith.science/pith/GR37BXQEW2WZND5GTCBDP5XENO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GR37BXQEW2WZND5GTCBDP5XENO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GR37BXQEW2WZND5GTCBDP5XENO","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":"af5938545f7dce520e9c3ee27817808823e09f837d1be0e6535fd8b19fa757b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-12T13:12:34Z","title_canon_sha256":"edfd8bc1729f72178194d1abb29f95551664bfffbb79bcf07f8c3b40715a3d8e"},"schema_version":"1.0","source":{"id":"1807.04592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.04592","created_at":"2026-05-18T00:08:05Z"},{"alias_kind":"arxiv_version","alias_value":"1807.04592v1","created_at":"2026-05-18T00:08:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.04592","created_at":"2026-05-18T00:08:05Z"},{"alias_kind":"pith_short_12","alias_value":"GR37BXQEW2WZ","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GR37BXQEW2WZND5G","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GR37BXQE","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:50c7da999f62e75ff6875323fab4167d45542732c25ddba42d040c8011b48f60","target":"graph","created_at":"2026-05-18T00:08:05Z","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 a detailed determination and analysis of 3D stellar mass distribution of the Galactic disk for mono-age populations using a sample of 0.93 million main-sequence turn-off and subgiant stars from the LAMOST Galactic Surveys. Our results show (1) all stellar populations younger than 10\\,Gyr exhibit strong disk flaring, which is accompanied with a dumpy vertical density profile that is best described by a $sech^n$ function with index depending on both radius and age; (2) Asymmetries and wave-like oscillations are presented in both the radial and vertical direction, with strength varying","authors_text":"Bingqiu Chen, Chun Wang, Haibo Yuan, Huawei Zhang, Jianrong Shi, Maosheng Xiang, Meng Zhang, Xiaowei Liu, Yang Huang, Zhijia Tian, Zhiying Huo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-12T13:12:34Z","title":"Stellar mass distribution and star formation history of the Galactic disk revealed by mono-age stellar populations from LAMOST"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.04592","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:a49191b5c06e5d0507a263237b40c609c53f40e3d1a8036ece19da670fad8bb1","target":"record","created_at":"2026-05-18T00:08:05Z","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":"af5938545f7dce520e9c3ee27817808823e09f837d1be0e6535fd8b19fa757b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-07-12T13:12:34Z","title_canon_sha256":"edfd8bc1729f72178194d1abb29f95551664bfffbb79bcf07f8c3b40715a3d8e"},"schema_version":"1.0","source":{"id":"1807.04592","kind":"arxiv","version":1}},"canonical_sha256":"3477f0de04b6ad968fa6988237f6e46ba90d8342d898a2e421669c7d4e67b6ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3477f0de04b6ad968fa6988237f6e46ba90d8342d898a2e421669c7d4e67b6ef","first_computed_at":"2026-05-18T00:08:05.946776Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:05.946776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l1eEJOgBdhEzpgaTaUkUBVWOMSZ1qW3cVDCdh7c1rpRgTF3FSJaZ03thJSoIqgB4YEmwZofbXtqcMM+uNRNyAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:05.947360Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.04592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a49191b5c06e5d0507a263237b40c609c53f40e3d1a8036ece19da670fad8bb1","sha256:50c7da999f62e75ff6875323fab4167d45542732c25ddba42d040c8011b48f60"],"state_sha256":"bc013d23a7e5106cf686c0297c0d46416d3d23a4e43820fa7c785bad81957f92"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/TINsHOA+nx1Koe4aularO7rDs2m/RVOxJgWM2bvi3b5sqaaNsfasinABkvsVBSMuKkUOiwCq6n09jWg3p96AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T01:34:03.963260Z","bundle_sha256":"ae27503ade56cc55be7f6521fe92773059e2dfbffadf66a27463358085130651"}}