{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:2AV24NEU3XHEEOHP3WZTFATKNT","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":"6d9f49f09953a659fe2cd6e81daadff550b89cd49331aee27cb6862b5ebae39a","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-12-14T07:59:59Z","title_canon_sha256":"2d50541fb4565bc99b94ab4c3e95e124f121afa99079626632a3cd2087028e1d"},"schema_version":"1.0","source":{"id":"2012.07318","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.07318","created_at":"2026-07-05T02:51:12Z"},{"alias_kind":"arxiv_version","alias_value":"2012.07318v1","created_at":"2026-07-05T02:51:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.07318","created_at":"2026-07-05T02:51:12Z"},{"alias_kind":"pith_short_12","alias_value":"2AV24NEU3XHE","created_at":"2026-07-05T02:51:12Z"},{"alias_kind":"pith_short_16","alias_value":"2AV24NEU3XHEEOHP","created_at":"2026-07-05T02:51:12Z"},{"alias_kind":"pith_short_8","alias_value":"2AV24NEU","created_at":"2026-07-05T02:51:12Z"}],"graph_snapshots":[{"event_id":"sha256:c8c86248e2d0c2f66e5ccdf211aacca23f53b710f6b83839640e8defddf90b49","target":"graph","created_at":"2026-07-05T02:51:12Z","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/2012.07318/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present far ultraviolet (FUV) observations of globular cluster NGC 4147 using three FUV filters, BaF2 (F154W), Sapphire (F169M), and Silica (F172M) of Ultra-Violet Imaging Telescope (UVIT) on-board the \\mbox{{\\em AstroSat}} satellite. We confirmed the cluster membership of the UVIT observed sources using proper motions from Gaia data release 2 (GAIA DR2). We identified 37 blue horizontal branch stars (BHBs), one blue straggler star (BSS) and 15 variable stars using UV-optical color magnitude diagrams (CMDs). We find that all the FUV bright BHBs are second generation population stars. Using ","authors_text":"Abhisek Mohapatra, Ananta C. Pradhan, Devendra K. Ojha, Jayant Murthy, Mudumba Parthasarathy, Ranjan Kumar, Santi Cassisi","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-12-14T07:59:59Z","title":"UVIT study of UV bright stars in the globular cluster NGC 4147"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.07318","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:a2a3dca30f43835a0f9c528ff2b9547bd7b11ea896c6ab5b12cfb86a9da47626","target":"record","created_at":"2026-07-05T02:51:12Z","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":"6d9f49f09953a659fe2cd6e81daadff550b89cd49331aee27cb6862b5ebae39a","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-12-14T07:59:59Z","title_canon_sha256":"2d50541fb4565bc99b94ab4c3e95e124f121afa99079626632a3cd2087028e1d"},"schema_version":"1.0","source":{"id":"2012.07318","kind":"arxiv","version":1}},"canonical_sha256":"d02bae3494ddce4238efddb332826a6cffb998e3d02f85652f5c99bda8ef065b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d02bae3494ddce4238efddb332826a6cffb998e3d02f85652f5c99bda8ef065b","first_computed_at":"2026-07-05T02:51:12.602083Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:51:12.602083Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u69nkFXDbiq8sE351YSMG9koPxKdf4dME2V8XQhcav4DKf0IfEWd9cpZrHufxKvSinBqWbU7v0O8/nyRzNCMDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:51:12.602602Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.07318","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2a3dca30f43835a0f9c528ff2b9547bd7b11ea896c6ab5b12cfb86a9da47626","sha256:c8c86248e2d0c2f66e5ccdf211aacca23f53b710f6b83839640e8defddf90b49"],"state_sha256":"ce44f6ad49dd76bd17c1c5a842964bbfdc9a45904df5883b5ddfad65c180539a"}