{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:LWTSGQ362M36RFAYULNTTFDEX5","short_pith_number":"pith:LWTSGQ36","canonical_record":{"source":{"id":"2312.07219","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-12-12T12:32:33Z","cross_cats_sorted":[],"title_canon_sha256":"7e3dfc93817d7d9ab311a5811e11b607b6e4f831a89eccf524c7650f9e6a08fc","abstract_canon_sha256":"be00fab5289fd2f27130d40e3d69fff08e30717060ae15ebcd7cf189087d3988"},"schema_version":"1.0"},"canonical_sha256":"5da723437ed337e89418a2db399464bf70701a934bd1697dbf7450771a5db7fb","source":{"kind":"arxiv","id":"2312.07219","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.07219","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"arxiv_version","alias_value":"2312.07219v1","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.07219","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"pith_short_12","alias_value":"LWTSGQ362M36","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"pith_short_16","alias_value":"LWTSGQ362M36RFAY","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"pith_short_8","alias_value":"LWTSGQ36","created_at":"2026-07-05T07:23:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:LWTSGQ362M36RFAYULNTTFDEX5","target":"record","payload":{"canonical_record":{"source":{"id":"2312.07219","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-12-12T12:32:33Z","cross_cats_sorted":[],"title_canon_sha256":"7e3dfc93817d7d9ab311a5811e11b607b6e4f831a89eccf524c7650f9e6a08fc","abstract_canon_sha256":"be00fab5289fd2f27130d40e3d69fff08e30717060ae15ebcd7cf189087d3988"},"schema_version":"1.0"},"canonical_sha256":"5da723437ed337e89418a2db399464bf70701a934bd1697dbf7450771a5db7fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:23:16.707331Z","signature_b64":"ympRUNRdMxcYzhkgxCIc7BRjl/B8csVM4FG8Iz5TyihtzxMO1FMVyD1oUn/5ZuUrQxoVQQkPSbrDcw9z0h9oCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5da723437ed337e89418a2db399464bf70701a934bd1697dbf7450771a5db7fb","last_reissued_at":"2026-07-05T07:23:16.706823Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:23:16.706823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.07219","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":"2026-07-05T07:23:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5sRA2nadflIuz03JxlHYSHQLYu4d5XZWTtgWh6p/ifZRrGTrp5T54QdYIzpjHFf/KQM3ysxeNlLza1ebzNPxDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T01:59:46.703600Z"},"content_sha256":"54a7db09ccfecf788681e7a06f44307c2fd8697bb1a0270c64d1138046dd6584","schema_version":"1.0","event_id":"sha256:54a7db09ccfecf788681e7a06f44307c2fd8697bb1a0270c64d1138046dd6584"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:LWTSGQ362M36RFAYULNTTFDEX5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LMC Stars and Where to Find Them: Inferring Birth Radii for External Galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrea V. Macci\\`o, Aura Obreja, Bridget Ratcliffe, David Nidever, Ivan Minchev, Tobias Buck, Yuxi (Lucy) Lu","submitted_at":"2023-12-12T12:32:33Z","abstract_excerpt":"It is well known that stars move away from their birth location over time via radial migration. This dynamical process makes computing the correct chemical evolution, e.g., metallicity gradients, of galaxies very difficult. This dynamical process makes inferring the chemical evolution of observed galaxies from their measured abundance gradients very difficult. One way to account for radial migration is to infer stellar birth radii for individual stars. Many attempts to do so have been performed over the last years, but are limited to the Milky Way as computing the birth position of stars requi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.07219","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2312.07219/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T07:23:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OpquqX42aePueCxm46kvgfmvFmwVcQ2Y8T8cz8Q7tZEzo/aZqyDaP299Dh3y7ZDtgiVdD8MhXBg8IJ+J7F2eBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T01:59:46.704255Z"},"content_sha256":"572e3ea5e63453d33d06df3ad38cc31979466c10451a90057a10d6061cd09ad6","schema_version":"1.0","event_id":"sha256:572e3ea5e63453d33d06df3ad38cc31979466c10451a90057a10d6061cd09ad6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LWTSGQ362M36RFAYULNTTFDEX5/bundle.json","state_url":"https://pith.science/pith/LWTSGQ362M36RFAYULNTTFDEX5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LWTSGQ362M36RFAYULNTTFDEX5/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":"2026-07-07T01:59:46Z","links":{"resolver":"https://pith.science/pith/LWTSGQ362M36RFAYULNTTFDEX5","bundle":"https://pith.science/pith/LWTSGQ362M36RFAYULNTTFDEX5/bundle.json","state":"https://pith.science/pith/LWTSGQ362M36RFAYULNTTFDEX5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LWTSGQ362M36RFAYULNTTFDEX5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:LWTSGQ362M36RFAYULNTTFDEX5","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":"be00fab5289fd2f27130d40e3d69fff08e30717060ae15ebcd7cf189087d3988","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-12-12T12:32:33Z","title_canon_sha256":"7e3dfc93817d7d9ab311a5811e11b607b6e4f831a89eccf524c7650f9e6a08fc"},"schema_version":"1.0","source":{"id":"2312.07219","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.07219","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"arxiv_version","alias_value":"2312.07219v1","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.07219","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"pith_short_12","alias_value":"LWTSGQ362M36","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"pith_short_16","alias_value":"LWTSGQ362M36RFAY","created_at":"2026-07-05T07:23:16Z"},{"alias_kind":"pith_short_8","alias_value":"LWTSGQ36","created_at":"2026-07-05T07:23:16Z"}],"graph_snapshots":[{"event_id":"sha256:572e3ea5e63453d33d06df3ad38cc31979466c10451a90057a10d6061cd09ad6","target":"graph","created_at":"2026-07-05T07:23:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2312.07219/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is well known that stars move away from their birth location over time via radial migration. This dynamical process makes computing the correct chemical evolution, e.g., metallicity gradients, of galaxies very difficult. This dynamical process makes inferring the chemical evolution of observed galaxies from their measured abundance gradients very difficult. One way to account for radial migration is to infer stellar birth radii for individual stars. Many attempts to do so have been performed over the last years, but are limited to the Milky Way as computing the birth position of stars requi","authors_text":"Andrea V. Macci\\`o, Aura Obreja, Bridget Ratcliffe, David Nidever, Ivan Minchev, Tobias Buck, Yuxi (Lucy) Lu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-12-12T12:32:33Z","title":"LMC Stars and Where to Find Them: Inferring Birth Radii for External Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.07219","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":"sha256:54a7db09ccfecf788681e7a06f44307c2fd8697bb1a0270c64d1138046dd6584","target":"record","created_at":"2026-07-05T07:23:16Z","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":"be00fab5289fd2f27130d40e3d69fff08e30717060ae15ebcd7cf189087d3988","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-12-12T12:32:33Z","title_canon_sha256":"7e3dfc93817d7d9ab311a5811e11b607b6e4f831a89eccf524c7650f9e6a08fc"},"schema_version":"1.0","source":{"id":"2312.07219","kind":"arxiv","version":1}},"canonical_sha256":"5da723437ed337e89418a2db399464bf70701a934bd1697dbf7450771a5db7fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5da723437ed337e89418a2db399464bf70701a934bd1697dbf7450771a5db7fb","first_computed_at":"2026-07-05T07:23:16.706823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:23:16.706823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ympRUNRdMxcYzhkgxCIc7BRjl/B8csVM4FG8Iz5TyihtzxMO1FMVyD1oUn/5ZuUrQxoVQQkPSbrDcw9z0h9oCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:23:16.707331Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.07219","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54a7db09ccfecf788681e7a06f44307c2fd8697bb1a0270c64d1138046dd6584","sha256:572e3ea5e63453d33d06df3ad38cc31979466c10451a90057a10d6061cd09ad6"],"state_sha256":"b007b73a6d81b418d5c61002449d9620c80d343c6518b1c7e1e94f5f1c22ef94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cfmZzO5JuOyMNGb8sOqzmFVhY1x7GCYkWie1b2kWmTh101mk28VU8biKqSmwUtR4f8BMn+psHYWhDhW1bGvxAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T01:59:46.707750Z","bundle_sha256":"d1d4892d60ca0b7cef12d3e5097e7176e763e280ea15f7fedb817afcb35325a2"}}