{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:LEBWYRKUMB3EURN2HBYM5GNC2A","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":"319328f1c9006640b91a722b34aff55a2be5a7d784c2f47e74f1d8b94e93514b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-02T10:43:46Z","title_canon_sha256":"ac6a1be9655702b90b58ef521f30bd439f5b5de8ad79cb8655de81bf0f0ad6bc"},"schema_version":"1.0","source":{"id":"astro-ph/9807024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9807024","created_at":"2026-07-04T14:15:53Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9807024v1","created_at":"2026-07-04T14:15:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9807024","created_at":"2026-07-04T14:15:53Z"},{"alias_kind":"pith_short_12","alias_value":"LEBWYRKUMB3E","created_at":"2026-07-04T14:15:53Z"},{"alias_kind":"pith_short_16","alias_value":"LEBWYRKUMB3EURN2","created_at":"2026-07-04T14:15:53Z"},{"alias_kind":"pith_short_8","alias_value":"LEBWYRKU","created_at":"2026-07-04T14:15:53Z"}],"graph_snapshots":[{"event_id":"sha256:368af612a39b66fee1c3fc996e2485d0b5bcf3a37e9e784f7e860ae478a63718","target":"graph","created_at":"2026-07-04T14:15:53Z","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/astro-ph/9807024/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the kinematics of T Tauri stars (TTS) located in the cores of the Chamaeleon clouds as well as far off these clouds. Our sample comprises 2 early type stars known to be related to Cha I, 6 classical (CTTS) and 6 weak-line T Tauri stars (WTTS) known before the ROSAT mission, and 8 bona-fide pre-main sequence (PMS) stars as well as 23 presumably older stars discovered with ROSAT (Alcala et al. 1995; Covino et al. 1997). Altogether we present proper motions for 45 stars, taken from the Hipparcos, ACT and STARNET catalogues. For 12 stars of our sample parallaxes measured by Hipparcos are ","authors_text":"Elvira Covino, Juan M. Alcala, Sabine Frink, Siegfried Roeser, Wolfgang Brandner","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-07-02T10:43:46Z","title":"Kinematics of T Tauri stars in Chamaeleon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9807024","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":"sha256:542bce36c590875d600ac7661ebc65611e71976e02fb629fab4172b24f50d8a9","target":"record","created_at":"2026-07-04T14:15:53Z","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":"319328f1c9006640b91a722b34aff55a2be5a7d784c2f47e74f1d8b94e93514b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-07-02T10:43:46Z","title_canon_sha256":"ac6a1be9655702b90b58ef521f30bd439f5b5de8ad79cb8655de81bf0f0ad6bc"},"schema_version":"1.0","source":{"id":"astro-ph/9807024","kind":"arxiv","version":1}},"canonical_sha256":"59036c455460764a45ba3870ce99a2d02be54260259ccdb40a9288dc75465038","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59036c455460764a45ba3870ce99a2d02be54260259ccdb40a9288dc75465038","first_computed_at":"2026-07-04T14:15:53.576608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:15:53.576608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jov8b7nPWBoQnprHjr/bTvi4O2ufOL+3P28Wxa9XgHwt+1+s2S0H0P8VlAUiEqesAfdh2hTDLRML1XGz/pftCA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:15:53.577040Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9807024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:542bce36c590875d600ac7661ebc65611e71976e02fb629fab4172b24f50d8a9","sha256:368af612a39b66fee1c3fc996e2485d0b5bcf3a37e9e784f7e860ae478a63718"],"state_sha256":"b720de439888b94d2fbee0ddab4c37b543ede1b053193db6346e275de971d1ca"}