{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:262CPCLEOUU2JGAZD4FW6KY3X3","short_pith_number":"pith:262CPCLE","canonical_record":{"source":{"id":"1104.4881","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-26T09:50:26Z","cross_cats_sorted":[],"title_canon_sha256":"f2416f8153e6a1555a653cbb275b44b4b13e2f6beef70b797d91a22f070fb64f","abstract_canon_sha256":"a4bb775e0548f538ac40fcf70952e117e6c594c580064391e3765653ca8dbc00"},"schema_version":"1.0"},"canonical_sha256":"d7b42789647529a498191f0b6f2b1bbef347a1571178a693c3e2b08b66a0f841","source":{"kind":"arxiv","id":"1104.4881","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.4881","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"1104.4881v1","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.4881","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"262CPCLEOUU2","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"262CPCLEOUU2JGAZ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"262CPCLE","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:262CPCLEOUU2JGAZD4FW6KY3X3","target":"record","payload":{"canonical_record":{"source":{"id":"1104.4881","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-26T09:50:26Z","cross_cats_sorted":[],"title_canon_sha256":"f2416f8153e6a1555a653cbb275b44b4b13e2f6beef70b797d91a22f070fb64f","abstract_canon_sha256":"a4bb775e0548f538ac40fcf70952e117e6c594c580064391e3765653ca8dbc00"},"schema_version":"1.0"},"canonical_sha256":"d7b42789647529a498191f0b6f2b1bbef347a1571178a693c3e2b08b66a0f841","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:14.905003Z","signature_b64":"b9ge3+PQNoRgChw6KaNrlGgEOpyNav9wibabSbZiSOgbjMvx5Bsq8+FNb6cVo3v2/vUk5T7TEqcgZjmwORboAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7b42789647529a498191f0b6f2b1bbef347a1571178a693c3e2b08b66a0f841","last_reissued_at":"2026-05-18T02:02:14.904389Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:14.904389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.4881","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":"2026-05-18T02:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cBxP2WBAu4ZnbK4met3JEe6TuW9UcuDwImLvXyevKBqJyCJ4uRZObYqKrVlnZCwwSOPO+xTy9OmDPuJzBiFQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:08:22.480827Z"},"content_sha256":"2fad1c803ac5f943af6b3f9f0b1df5a8c7a1bf3cc18132cb670720261190ddd7","schema_version":"1.0","event_id":"sha256:2fad1c803ac5f943af6b3f9f0b1df5a8c7a1bf3cc18132cb670720261190ddd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:262CPCLEOUU2JGAZD4FW6KY3X3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of radial flows on the chemical evolution of the Milky Way disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2) ((1) Dipartimento di Astronomia, (2) I.N.A.F Osservatorio Astronomico di Trieste, 3), (3) Department of Mathematics, E. Spitoni (1, F. Matteucci (1, Italy, Portugal), Universita' di Trieste, University of Evora","submitted_at":"2011-04-26T09:50:26Z","abstract_excerpt":"The majority of chemical evolution models assume that the Galactic disk forms by means of infall of gas and divide the disk into several independent rings without exchange of matter between them. However, if gas infall is important, radial gas flows should be taken into account as a dynamical consequence of infall. The aim of this paper is to test the effect of radial gas flows on detailed chemical evolution models (one-infall and two-infall) for the Milky Way disk with different prescriptions for the infall law and star formation rate. We found, that with a gas radial inflow of constant speed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.4881","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":"2026-05-18T02:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gyq7iX3qi2c9HRQWi2sQAvnqMbz9ZD/AKi3ERW7tX+7RnCp0PuZuPMa9FJPngH+FZQY4QFagrjYyV5ahCOflAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:08:22.481183Z"},"content_sha256":"24c6b8cebe878b72022d5d17c634658c8e98c55be90cc556201c22b6fc483478","schema_version":"1.0","event_id":"sha256:24c6b8cebe878b72022d5d17c634658c8e98c55be90cc556201c22b6fc483478"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/262CPCLEOUU2JGAZD4FW6KY3X3/bundle.json","state_url":"https://pith.science/pith/262CPCLEOUU2JGAZD4FW6KY3X3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/262CPCLEOUU2JGAZD4FW6KY3X3/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":"2026-06-02T03:08:22Z","links":{"resolver":"https://pith.science/pith/262CPCLEOUU2JGAZD4FW6KY3X3","bundle":"https://pith.science/pith/262CPCLEOUU2JGAZD4FW6KY3X3/bundle.json","state":"https://pith.science/pith/262CPCLEOUU2JGAZD4FW6KY3X3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/262CPCLEOUU2JGAZD4FW6KY3X3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:262CPCLEOUU2JGAZD4FW6KY3X3","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":"a4bb775e0548f538ac40fcf70952e117e6c594c580064391e3765653ca8dbc00","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-26T09:50:26Z","title_canon_sha256":"f2416f8153e6a1555a653cbb275b44b4b13e2f6beef70b797d91a22f070fb64f"},"schema_version":"1.0","source":{"id":"1104.4881","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.4881","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"1104.4881v1","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.4881","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"262CPCLEOUU2","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"262CPCLEOUU2JGAZ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"262CPCLE","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:24c6b8cebe878b72022d5d17c634658c8e98c55be90cc556201c22b6fc483478","target":"graph","created_at":"2026-05-18T02:02:14Z","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":"The majority of chemical evolution models assume that the Galactic disk forms by means of infall of gas and divide the disk into several independent rings without exchange of matter between them. However, if gas infall is important, radial gas flows should be taken into account as a dynamical consequence of infall. The aim of this paper is to test the effect of radial gas flows on detailed chemical evolution models (one-infall and two-infall) for the Milky Way disk with different prescriptions for the infall law and star formation rate. We found, that with a gas radial inflow of constant speed","authors_text":"2) ((1) Dipartimento di Astronomia, (2) I.N.A.F Osservatorio Astronomico di Trieste, 3), (3) Department of Mathematics, E. Spitoni (1, F. Matteucci (1, Italy, Portugal), Universita' di Trieste, University of Evora","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-26T09:50:26Z","title":"Effects of radial flows on the chemical evolution of the Milky Way disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.4881","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":"sha256:2fad1c803ac5f943af6b3f9f0b1df5a8c7a1bf3cc18132cb670720261190ddd7","target":"record","created_at":"2026-05-18T02:02:14Z","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":"a4bb775e0548f538ac40fcf70952e117e6c594c580064391e3765653ca8dbc00","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-26T09:50:26Z","title_canon_sha256":"f2416f8153e6a1555a653cbb275b44b4b13e2f6beef70b797d91a22f070fb64f"},"schema_version":"1.0","source":{"id":"1104.4881","kind":"arxiv","version":1}},"canonical_sha256":"d7b42789647529a498191f0b6f2b1bbef347a1571178a693c3e2b08b66a0f841","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7b42789647529a498191f0b6f2b1bbef347a1571178a693c3e2b08b66a0f841","first_computed_at":"2026-05-18T02:02:14.904389Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:14.904389Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b9ge3+PQNoRgChw6KaNrlGgEOpyNav9wibabSbZiSOgbjMvx5Bsq8+FNb6cVo3v2/vUk5T7TEqcgZjmwORboAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:14.905003Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.4881","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2fad1c803ac5f943af6b3f9f0b1df5a8c7a1bf3cc18132cb670720261190ddd7","sha256:24c6b8cebe878b72022d5d17c634658c8e98c55be90cc556201c22b6fc483478"],"state_sha256":"218ccc8b1a7c951ee6d09c574a43940deda147e44e6b7bfd11dfc19e0c56f1e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KO/fvBOfbS2eJyJYwkN0B27TgP9FRSPv9ftN97LtqsUdaP4nDWe1lbE9l3YNBBmUDqZSwK56+wOw6VWTzj5hDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:08:22.483122Z","bundle_sha256":"a29ad50f16afe72c0c17ebebee3641fb6c5f56556930ec865a431d27a309a43b"}}