{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:5BRUMM7KXKR6UWBZRWLNLBDONQ","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":"c338b94528a5f1159923eff5099d327af223fa9e48dac41be0266f09783064cf","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-30T06:00:12Z","title_canon_sha256":"d1136081c13d75fe8dc9481925856eafdc8edc14e9ee4e15295f559a44e46e4c"},"schema_version":"1.0","source":{"id":"2505.24240","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24240","created_at":"2026-07-05T11:16:09Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24240v1","created_at":"2026-07-05T11:16:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24240","created_at":"2026-07-05T11:16:09Z"},{"alias_kind":"pith_short_12","alias_value":"5BRUMM7KXKR6","created_at":"2026-07-05T11:16:09Z"},{"alias_kind":"pith_short_16","alias_value":"5BRUMM7KXKR6UWBZ","created_at":"2026-07-05T11:16:09Z"},{"alias_kind":"pith_short_8","alias_value":"5BRUMM7K","created_at":"2026-07-05T11:16:09Z"}],"graph_snapshots":[{"event_id":"sha256:a698786fd297b19d05f6430af57b79c3cf183ff07a80ff7bc689bfa292daf47b","target":"graph","created_at":"2026-07-05T11:16:09Z","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/2505.24240/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a decade-long investigation of a poorly studied cluster, Berkeley 65 (Be 65), using deep optical data from the telescopes of ARIES, Nainital Observatory. We estimate its radius ($R_{cluster}$ = 1.6$^{'}$, aspect ratio of $\\sim$1.1), distance (2.0 $\\pm$ 0.1 kpc) and age ($\\sim$160 Myrs). A clear turn-off point at $\\sim$1.7 M$_\\odot$ in the mass function suggests the escape of low-mass stars, and the lower photometric mass compared to the dynamical mass indicates ongoing disruption due to external forces. Our long-baseline optical photometric data also identifies 64 periodic and 16 no","authors_text":"Aayushi Verma, Ajay Kumar Singh, Devendra K. Ojha, Harmeen Kaur, Jeewan Pandey, Koshvendra Singh, Mamta, Manojit Chakraborty, Saurabh Sharma, Tarak Chand","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-30T06:00:12Z","title":"Long-term investigation of an open cluster Berkeley 65"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24240","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":"sha256:9856a343f3290b526fb52b451f7cf0d849726b22c1397aea1550fbf834af89f3","target":"record","created_at":"2026-07-05T11:16:09Z","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":"c338b94528a5f1159923eff5099d327af223fa9e48dac41be0266f09783064cf","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-30T06:00:12Z","title_canon_sha256":"d1136081c13d75fe8dc9481925856eafdc8edc14e9ee4e15295f559a44e46e4c"},"schema_version":"1.0","source":{"id":"2505.24240","kind":"arxiv","version":1}},"canonical_sha256":"e8634633eabaa3ea58398d96d5846e6c1e9244158c85935eabfa99f2edd3782e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8634633eabaa3ea58398d96d5846e6c1e9244158c85935eabfa99f2edd3782e","first_computed_at":"2026-07-05T11:16:09.088632Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:16:09.088632Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wg6/0SVoyyN4WvXC239lHALzv7JAjyHB+B6jq8n7duaj5aXVycaczYk6DdBQm8DjtV2aidQmzthDWEBTeibHBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:16:09.089125Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.24240","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9856a343f3290b526fb52b451f7cf0d849726b22c1397aea1550fbf834af89f3","sha256:a698786fd297b19d05f6430af57b79c3cf183ff07a80ff7bc689bfa292daf47b"],"state_sha256":"363c10961b61d758354051c56ca6b3418d816182d853f232c8061b34da276c36"}