{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:E7TLATAEG2PXKTGX2L4RVWF4OK","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":"e671e3eb83726f2d7be3f7f4d86f28138835287da951302d9da645b264a118ed","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-31T07:40:41Z","title_canon_sha256":"bbe24c19a7d375a5f84df044fca1fd98d936f6c219143f54f3fc2b3961c05af3"},"schema_version":"1.0","source":{"id":"2407.21399","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.21399","created_at":"2026-07-05T09:15:35Z"},{"alias_kind":"arxiv_version","alias_value":"2407.21399v2","created_at":"2026-07-05T09:15:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.21399","created_at":"2026-07-05T09:15:35Z"},{"alias_kind":"pith_short_12","alias_value":"E7TLATAEG2PX","created_at":"2026-07-05T09:15:35Z"},{"alias_kind":"pith_short_16","alias_value":"E7TLATAEG2PXKTGX","created_at":"2026-07-05T09:15:35Z"},{"alias_kind":"pith_short_8","alias_value":"E7TLATAE","created_at":"2026-07-05T09:15:35Z"}],"graph_snapshots":[{"event_id":"sha256:09fcb714ebce7639c458104ea6115f28460a4c73eedac1b97ff7767c13c80d8e","target":"graph","created_at":"2026-07-05T09:15:35Z","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/2407.21399/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Villafranca project is studying Galactic stellar groups with OB stars combining information from $Gaia$ and ground-based surveys. We summarize the status of the project and we present its most important results. The Villafranca project has been used to produce a new astrometric calibration for $Gaia$ (E)DR3, which improves the previous one significantly for bright stars. We have discovered that dynamical interactions among massive stars at a very young age ($\\sim$1 Ma or less) can play a significant interaction in the dynamical evolution of clusters. As a consequence, our current view of t","authors_text":"A. Lambarri Mart\\'inez, J. A. Molina Lera, J. Ma\\'iz Apell\\'aniz, R. Fern\\'andez Aranda, R. H. Barb\\'a","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-31T07:40:41Z","title":"The Villafranca project: Combining Gaia and ground-based surveys to study Galactic OB groups"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.21399","kind":"arxiv","version":2},"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":"sha256:80ddbba65fc3a3324208d1b266fbc0fae41e5a1650fc5da22b9a5673dfad84e0","target":"record","created_at":"2026-07-05T09:15:35Z","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":"e671e3eb83726f2d7be3f7f4d86f28138835287da951302d9da645b264a118ed","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-31T07:40:41Z","title_canon_sha256":"bbe24c19a7d375a5f84df044fca1fd98d936f6c219143f54f3fc2b3961c05af3"},"schema_version":"1.0","source":{"id":"2407.21399","kind":"arxiv","version":2}},"canonical_sha256":"27e6b04c04369f754cd7d2f91ad8bc7287fbfd13f3f6a4d444fa979a8ffccbfe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27e6b04c04369f754cd7d2f91ad8bc7287fbfd13f3f6a4d444fa979a8ffccbfe","first_computed_at":"2026-07-05T09:15:35.444581Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:15:35.444581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HmrFUU8RLl74IpJiqUhD/MEUlUmvX+L0ke+K2nSqgeJmZ07OvhZUlSYgqB9mcEW8XMS2jbtGsOp6/kAx9vNpDw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:15:35.445027Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.21399","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80ddbba65fc3a3324208d1b266fbc0fae41e5a1650fc5da22b9a5673dfad84e0","sha256:09fcb714ebce7639c458104ea6115f28460a4c73eedac1b97ff7767c13c80d8e"],"state_sha256":"65c0084312da5fc9e19045ebadd018d90f5702c05f041fdf39b59b4f2c5d667a"}